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Bill Ackman engagement report

@BillAckman - 2.9M followers on X

Measured over 41 original posts from a 30-day window, last computed on September 1, 2026.

Engagement

Top 10% for its size
Per follower
0.281%
of 2.9M followers
Per impression
1.39%
592K views on a typical post
Reach
20.2%
of its followers see a post
Typical post
8.2K
interactions (median)
Saved
0.066%
389 bookmarks on a typical post
Posting rate
4.7/day
active 70% of days
Peak time
17:00 UTC
Thursday

A typical post picks up 8.2K interactions against 2.9M followers, an engagement rate of 0.281%. Measured over 41 original posts, its engagement rate beats 95% of 3,739 tracked accounts of a similar size. Comparing inside a size band matters here: engagement rate falls as accounts grow, so a raw rate would mostly just re-measure the follower count. Posts are seen about 592K times each, and 1.39% of those impressions turn into an interaction. That is about 20.2% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 4.7 posts a day over the last 30 days, with activity on roughly 70% of days. Most posts go out around 17:00 UTC, and Thursday is the busiest day of the week. Of the 41 posts sampled, 61% carry an image or video and 27% link out. The account's strongest tracked post pulled 119K interactions, about 14x its own typical post.

Measured over 41 original posts from a 30-day window, last computed on September 1, 2026.

Compared with accounts its own size

Bill Ackman's engagement rate beats 95% of the tracked X accounts closest to it in follower count (3,739 accounts, accounts of similar size (decile 10 of 10)). A percentile is spread evenly by construction, so 50 really is the middle of that group and 90 really is its top tenth.

On engagement per impression rather than per follower it beats 66% of the same group. When those two numbers disagree, the gap is about how far its posts travel rather than how people react to them.

Where this sits in the catalog

At 0.281%, Bill Ackman sits above the 50th percentile of the 36,261 accounts in this comparison. That places it in the above the median band, which runs 0.08% to 0.431%.

p100.002%
p250.012%
p50 (median)0.08%
p750.431%
p902.10%
p99160.7%
Engagement rate as a share of followers, across the 36,261 accounts we have scanned enough to measure. The axis is logarithmic, because the top and bottom of this population are about 107,137 times apart and a linear axis would flatten everything below the median into a single point.
Show the percentile table
Engagement rate percentiles
PercentileEngagement rate
10th percentile0.002%
25th percentile0.012%
50th percentile0.08%
75th percentile0.431%
90th percentile2.10%
99th percentile160.7%

This ruler is the whole measured catalog, not a size-matched group: it shows where the raw rate falls across every account we can measure, all of which are large. For a like-for-like comparison, read the size-band percentile above instead. See how the bands are built

Posting timing

This account posts most often around 17:00 UTC, and Thursday is its busiest day of the week. The bars below are the catalog-wide pattern, with this account's own busiest slot marked. They do not show how this account performs at each hour: we keep one aggregate per account, not one per hour, so that measurement does not exist in our data.

Engagement by hour posted, UTCTwenty-four bars, one per UTC hour. Each bar shows how posts published in that hour compare with their own authors' median engagement. Bars above the centre line ran higher than the median, bars below ran lower. A marker flags Busiest hour: 17:00 UTC.
0003060912151821
Above the authors' own mediansBelowScale: plus or minus 6%Busiest hour: 17:00 UTC
Show engagement by hour posted, utc as a table
Engagement by hour posted, UTC
Hour (UTC)Vs author medianPosts
00:00 UTC-1%50K
01:00 UTC-2%51K
02:00 UTC-3%50K
03:00 UTC-4%53K
04:00 UTC-6%43K
05:00 UTC-4%42K
06:00 UTC-4%48K
07:00 UTC-5%51K
08:00 UTC-4%60K
09:00 UTC-3%69K
10:00 UTC-2%71K
11:00 UTC-3%78K
12:00 UTC-2%86K
13:00 UTC-2%93K
14:00 UTC-3%96K
15:00 UTC-2%100K
16:00 UTC-3%97K
17:00 UTC-2%90K
18:00 UTC-1%84K
19:00 UTC-2%79K
20:00 UTC-1%74K
21:00 UTC-1%66K
22:00 UTC-2%57K
23:00 UTC-2%51K
Engagement by day of weekSeven bars, one per weekday, Sunday first. Each bar shows how posts published on that day compare with their own authors' median engagement. Bars above the centre line ran higher than the median, bars below ran lower. A marker flags Busiest day: Thursday.
SunMonTueWedThuFriSat
Above the authors' own mediansBelowScale: plus or minus 5%Busiest day: Thursday
Show engagement by day of week as a table
Engagement by day of week
DayVs author medianPosts
Sunday+4%229K
Monday0%284K
Tuesday-2%273K
Wednesday-1%250K
Thursday-2%243K
Friday-3%251K
Saturday+3%226K
See what moves engagement across the whole catalogWhat counts as a good engagement rate at this size

Best tweets

  • Aug 14, 202614x their median

    I am in tears. President Trump just walked out to a HUGE Crowd of New York Police Officers chanting: “USA USA USA” with a massive standing ovation Make America SAFE Again https://t.co/Y5IJNEqNzR

    98K18K2.2K371838K viewsView on X
  • Aug 19, 20269.1x their median

    At midnight on February 6th, earlier this year, the doorbell to our apartment rang. The doorbell was followed by a pounding on the door. I answered the door and a security person in our building handed me his phone. It was my oldest daughter Eloise. She had found my 26-year-old daughter unconscious on the floor of her apartment and had called 911. The EMT team was already there, but they did not know what was wrong with Lucy or to which hospital they would take her. I threw on some clothes and jumped in an Uber heading east toward Brooklyn. (Lucy lived alone in Williamsburg.) On the way, I learned that they were taking her to Elmhurst, a City trauma hospital in Queens. I arrived about five minutes after the ambulance to join Eloise, Lucy’s mom, and a friend, and waited to learn what was wrong. After about 15 minutes, I asked a nurse where she was. I looked over his shoulder to his computer. Next to her name, it said “non-responsive.” I walked into the emergency room and wandered around looking for her until I found her unconscious on a gurney surrounded by several doctors and nurses. By about 2:30am with the results from a CAT scan, Lucy’s doctors had determined that she had a massive brain hemorrhage and would need an emergency hemicraniectomy to release the pressure on her brain and remove the blood from the hemorrhage. I called our wonderful friend and family doctor Eddie Fisher and explained what was going on. He woke up Josh Bederson, Chairman of Neurosurgery at Mount Sinai, to find out more about Zach Hickman, the neurosurgeon on call that night. Dr. Bederson said Hickman was an excellent surgeon, which was comforting as we had no choice. The surgery to save Lucy’s life began around 3:15am and finished around 5:30am. It was successful. The following day, I joined Lucy in an ambulance while she was being transferred to Mount Sinai on Madison Avenue. Later that day, we determined from Lucy’s Oura ring that her hemorrhage had occurred around 9am, which meant that more than 19 hours had passed from the time of the hemorrhage to the completion of the surgery to release the pressure on her brain (I only wish @ouraring had an alert for this kind of a medical event. Imagine it could call a family member if the wearer doesn’t cancel the alert). I later learned that the standard of care is not to do surgery to save a patient with a large brain bleed if more than five hours have passed since the hemorrhage. Even when the surgery is done, I was told that the likely outcome for the patient is a few months in a nursing home and death from pneumonia. When I met Lucy’s doctors, I did my best to inspire them: “Let’s see what can be accomplished if we give her the best care possible and we invest unlimited resources to restore her to life.” And I promised that whatever we learned we would make available to everyone. Dr. Chris Kellner, her neurosurgeon, and Dr. David Putrino, Director of Rehabilitation Innovation for the Mount Sinai Health System have led Lucy’s care team since that day. Words cannot describe the remarkable and compassionate care that she has received beginning with the EMT team and then from nurses, doctors, therapists, and the army of people who have worked to save her and return her to life. To this day, we have a daily Zoom where we discuss her progress and make adjustments to her care. While her care and oversight have been incredible, the learnings for the Mount Sinai team have also been elucidating and will assist in the care of many others. Lucy began in a bad place. She was in a coma for several weeks and then awoke not being able to breathe on her own, unable to walk, see or speak. Over the last six months, she has recovered her cognition – she understands everything including her circumstance – is able to walk a hundred or more steps at a time with assistance, is making progress with sounds, vowels and consonants and the beginnings of speech, but she remains unable to see. Each day, she makes a little progress, and daily progress compounds. Every day I tell her that she just needs to make a little progress and it won’t be long before she is back. We remain optimistic that Lucy will return to normal function. It will likely take years, but I believe it is only a matter of time, hard work, and technological progress, along with some, and perhaps a lot, of divine intervention. Many people have been praying for Lucy and we are incredibly grateful for the prayers and remarkable support she has received. Lucy’s friends have been with her every day since the beginning, and their presence and friendship have saved her life and helped to rebuild and maintain her spirit. And on a very positive note, Lucy’s challenge has brought together our entire modern family who have all been incredibly devoted to her care and recovery. Lucy's vision and other faculties may require some form of brain computer interface, work that is underway at Neuralink, Precision Neuroscience, Science, Synchron, Nudge, and other companies in the space. If you are going to have a devastating brain injury, now is the best time in history for that to happen. We are living in a world when you can be confident that the blind will soon see again. We are going to do everything we can to help make that happen, including by assisting existing companies in the space. With respect to our promise to make Lucy’s care available to others, we have made good progress. In May, a real estate colleague made me aware of a 93% vacant, brand new, 400,000 square foot Class A+ purpose-built biotech facility on West End Avenue between 65th and 66th Streets that missed the market and was available for sale. The Pershing Square Foundation acquired the building 60 days later. We also put under contract an adjoining 130,000 square foot building at 320 West 66th Street that is currently being used by Saturday Night Live for studio space. The building has 35-foot ceilings with massive column-free spaces that can be converted into superb rehabilitation facilities. We will close on the SNL building in December. We are also acquiring an adjoining vacant lot with additional air rights. With just the existing zoning rights, we can add a 150,000 square feet for a total of 680,000 square feet, a lab footprint larger than Rockefeller University, and that’s without including the potential for an upzoning that would allow for substantially more buildable area on the site’s 3.4 acres with spectacular views of the Hudson. Our goal is to build the world’s greatest brain research, rehabilitation, recovery, human optimization, and longevity institute. We have named it The Ackman Oxman Institute or the AOI for lack of a better name, but also to reinforce the point that Neri and I and our family are all-in on the mission. The AOI will be patient-centric. It will not be an academic research institute that produces lots of papers, a Nobel Prize winner or two, but little if any results for patients. We will be laser-focused on cures, treatments, devices, rehabilitation and exercise equipment, and targeted and basic research with a goal of massively accelerating the time from idea to innovation to production to helping a patient. While the AOI will be a non-profit, it will have highly commercial instincts. The AOI will have its own venture funding and will work to develop innovations to create companies that we will seed, assist, and spinout to ensure technologies, treatments, techniques, and drugs get to patients as promptly as possible. On one 3.4 acre campus in what is still the greatest city in the world, we will do neurosurgery, neuroscience, rehabilitation, nutrition, BCI and device development, human trials, hyperbaric oxygen treatments, and life extension programs, and we will mandate and incentivize collaboration among the teams with no silos, politics, bureaucracy, or any other constraint that is inconsistent with the mission. Mount Sinai will be an important partner and deservedly so, but it won’t be our only hospital or medical school partner as we don’t believe any institution has a monopoly on the best ideas or the best talent. We don’t believe in exclusive relationships because that is not in the best interest of patients. Five years ago, we considered launching a brain institute inspired by Neri’s mom who sadly died from Alzheimer’s. We couldn’t make the math work as the real estate was too expensive and we believed it would be too difficult to recruit the best talent from universities to our effort. Since then, the real estate became available at a 70% discount, universities became a much less attractive place to work due to politics outweighing meritocracy, protests that disrupt learning, the curse of antisemitism, and a decline in funding. Fortunately, during the same time, I made sufficient personal economic progress to make the AOI possible. The advance of AI in the last few years will also enable us to greatly accelerate our mission. AI still has a lot to learn about human intelligence and the brain, and the AOI should be at the forefront of the interplay between the brain and AI. Today, I am making a public filing disclosing a gift from Neri and me of ~$400 million or 10,000,000 shares of Pershing Square Inc. (PS) to the AOI. It is very early days for Pershing Square so these shares are intended to anchor the long-term work of the AOI as the shares compound over time while generating what we expect will be a growing stream of quarterly dividends to fund the Institute. We will also be announcing an additional gift of similar and potentially greater size which won’t be in the form of Pershing Square stock to provide the AOI with the short- and intermediate-term runway necessary to enable it to achieve its goal of becoming a self-sustaining institute, which reinvests all of its revenues, royalties, and the economic rewards of company formation to advance the fields of brain health and human longevity. Neri and I have chosen to anchor the funding of the AOI to maintain vision alignment and limit the need for the organization to focus on fundraising. We expect the AOI to be the best-resourced brain, rehab, recovery, and longevity institute in the world. We are grateful to have been able to form a board which includes Dean Kamen (our generation’s Thomas Edison), George Yancopoulus (CEO of Regeneron), James Rothman (Nobel Laureate), Bernardo Sabatini (neuroscientist), Chris Kellner (neurosurgeon), Olivia Flatto (CEO Pershing Square Foundation), Neri Oxman, and myself. We have recently identified a CEO who we expect to announce by October along with other key hires, and are beginning searches for a Chief Scientific Officer, a Chief AI/Technology Officer, a Chief Operating Officer, a Chief Financial Officer, and other key leadership roles. If you find what we are building compelling and want to be part of the leadership team that creates and builds the AOI from a standing start, please send an email to: [email protected] with a short note as to why you believe you can help. Please include your best three ideas for the AOI along with a summary of your background and your most important accomplishments. We promise strict confidentiality to those expressing interest in working with us. We have learned from Lucy that the brain can recover from even catastrophic injury. There is so much more work to be done as the mind is a terrible thing to waste. For details from my Pershing Square SEC filing see: https://t.co/gZKafCw6Ia

    64K5.1K4.7K1.0K9.0M viewsView on X
  • Aug 11, 20267.9x their median

    🚨WOW!!! A college student is being praised as a HERO after she saw 3 little girls drowning in Lake Washington, jumped in, and saved ALL THREE GIRLS. The last one was UNCONSCIOUS, underwater, tangled in a rope, only her hair was still floating. All 3 SURVIVED!!!! ❤️ Her name is Lillie Vehling. She is an engineering student at UC Davis and an attacker on the women's water polo team. She was in Seattle for a summer internship and went to Seafair for the very first time, sitting at Genesee Park waiting on the Blue Angels with a book in her hands. Then she scanned the water. Three girls were out past the buoy line, bobbing, screaming, going under. She is a certified lifeguard who started her own swim lesson program, so she knew exactly what she was looking at. One of the girls was pushing the other two under just to get a breath. That is when she went in. She grabbed that girl first, to stop her from taking the other two down with her. Got her to shallow water. Went back for the second one. Then she went back a third time. By then the third girl was already gone under. Lillie: "I just saw her black hair in the water barely floating." The child was unconscious AND tangled in the rope of a buoy she had been clawing at to save her own life. Lillie got an arm under her, lifted her head out of the water, and hauled her to shore. The little girl coughed up the lake and came back. Seattle Fire paramedics met them on the beach. One girl went to Seattle Children's Hospital in stable condition. All three lived. Seafair's president found her that same day. Her first question was whether Lillie was okay. Her second was whether she could give her a hug. That night they brought her to the gala and knighted her "Lady Guardian of Lake Washington." Admirals lined up to meet her. And Lillie? She is chasing a career in the nuclear Navy. Seafair's president says she hopes the next time Lillie comes back to that lake, it is in a Blue Angels cockpit. "To save three people, I didn't think twice about myself." GOD BLESS Lillie Vehling, and GOD BLESS the firefighter who raised her. THIS IS THE AMERICA I KNOW!!! 🇺🇸🇺🇸🇺🇸

    54K9.6K7664811.2M viewsView on X
  • Aug 16, 20267.8x their median

    If you had trusted the settled science of the day, here is how it would have gone. 1890s: you dose the baby with Bayer's new cough syrup, the non-addictive alternative to morphine, marketed for children. It was heroin. They named it after the German for heroic. 1900s: you rub calomel teething powder on your infant's gums. It is a mercury compound, and it leaves a generation with pink disease. Swollen, peeling hands and feet, screaming for months, and some of them died. 1910s: you cook in Crisco, launched by a soap and candle company, because cottonseed oil is modern and lard is what your mother used. The process that made it solid produced trans fat, banned outright a century later. 1920s: you drink Radithor, certified radioactive water, on prescription. Eben Byers took fourteen hundred bottles for his vitality. His jaw was removed in pieces and he was buried in a lead coffin. 1930s: a chemist dissolves a new sulfa drug in diethylene glycol, which is antifreeze. It kills 107 people, mostly children, and only then does America give the FDA power to demand safety testing. 1940s: your doctor lights a Camel in the surgery. More doctors smoke them than any other brand, and the advert runs in the Journal of the American Medical Association, which sold him the page. 1950s: DDT is sprayed over your kitchen, your garden and your children at school. The man who found its insecticidal properties has already been given a Nobel Prize. 1960s: your wife takes thalidomide for morning sickness because it is remarkably safe. More than ten thousand children are born with missing and shortened limbs. 1970s: the country puts down the butter and picks up the margarine, on the instruction of the American Heart Association. The fat everybody switched to was banned in 2015 as unsafe at any level. 1980s: the fat comes out of everything and sugar goes back in to make it edible. Obesity begins a climb it has never come off. 1990s: your father is prescribed OxyContin, because fewer than one per cent get addicted. The company later pleads guilty to criminal misbranding, and the overdose count runs into hundreds of thousands. 2000s: you take Vioxx for your knee. It is pulled in 2004, and the FDA's own safety officer estimates tens of thousands of excess heart attacks. Not one of those was fringe. Every one had a professional body, a literature and a man in a white coat standing behind it. Nobody who followed that advice was stupid. They were obedient, to the most qualified people available. Settled is a word about money. It means the questions stopped being funded, so they stopped being asked. So which of today's instructions will your grandchildren read out in disbelief. The oil washed in hexane and built into every cell you own. The statin that blocks the pathway making your hormones, to prevent one heart attack per hundred people. The injection where a third of the loss is muscle. The infant formula built out of vegetable oil. All settled. None of it funded to be otherwise.

    46K15K1.2K1.2K1.8M viewsView on X
  • Aug 18, 20265.2x their median

    PLEASE HELP MAKE THIS YOUNG MAN FAMOUS Yotam Budnik is a 12th-grade student from Rehovot 🇮🇱 just won a gold medal at the International Olympiad in Informatics in Uzbekistan but was not allowed to compete under the Israeli flag. When Yotam was awarded his medal 🏅 stepped onto the podium, pulled an Israeli flag out of his pocket and wore it in defiance of the Anti-Semitic discrimination. While the medal 🏅 was revoked from him for his courage, he has no regrets "The law that prevents me from waving the flag is based only on politics, and I thought there was no place for that in a scientific competition", he said. The organizers demanded that he return his medal. Yotam said no. Organizers took away his certificate and removed his ranking from the website. Please help make sure the world knows the name Yotam Budnik and that he is not only a world class computer science genius, but also a man of courage and pride of the Jewish people 💙

    30K11K748328431K viewsView on X
  • Aug 15, 20264.8x their median

    🚀 Le génie @elonmusk vient encore de nous sortir un coup magistral.👏🏻 Elon vient de retourner complètement la situation sur la censure. Pendant des années, des gouvernements du monde entier ont multiplié les pressions sur 𝕏 : menaces juridiques, amendes salées, réglementations sur mesure, exigences de museler des contenus… Une offensive tous azimuts pour forcer la plateforme à restreindre la liberté d’expression. 𝕏 a résisté. Encore et encore. Mais quand un État peut légalement imposer un filtre, Elon a décidé de transformer leur propre arme en boomerang : Rendre la censure totalement transparente. 𝕏 open-source désormais son système central et affiche clairement, au grand jour, chaque restriction exigée par un gouvernement. Qui l’a demandée, pourquoi, et comment elle a été appliquée : tout est visible. Résultat ? Si un pouvoir veut censurer, il le peut… mais le monde entier le verra. C’est le plus élégant retournement de force de l’histoire de la tech. Elon n’a jamais cessé de se battre pour la free speech et une transparence radicale. Aujourd’hui, même la censure d’État ne peut plus se cacher dans l’ombre. Génie.

    30K9.2K635433858K viewsView on X
  • Aug 14, 20264.0x their median

    🚨 THIS YOUNG MAN IS A HERO. Fourteen-year-old Acie Holland III was riding home from school, looking at his phone, when something felt wrong. The bus had passed his stop. Then it began accelerating. Acie looked toward the front and saw the driver unconscious over the steering wheel. The moving bus, carrying 14 students, was drifting across the centerline toward oncoming traffic. Acie did not scream. He did not freeze. He did not wait for an adult to save them. This eighth grader ran forward, seized the steering wheel, guided the bus back into its lane, moved the driver’s foot from the accelerator and pressed the brake until that enormous bus came safely to the curb. He could not find the parking brake, so he turned the wheels hard toward the curb to prevent the bus from rolling away. That is presence of mind under pressure. Then Acie checked on the younger students, told them to contact their parents, made certain 911 had been called and went to get his grandmother, Phyllis Holland, who is a nurse. The driver regained consciousness and received medical care. Every student made it home safely. Acie had worked on cars with his father and enjoyed go-karting, but nothing could have completely prepared a 14-year-old boy to take control of a moving school bus. Something had already been built inside him: courage, mechanical understanding, responsibility and the instinct to protect others. His classmates gave him a new name: “AC-Hero.” That name fits. While the world spends enormous energy telling us what is wrong with young men, Acie Holland III reminded us what can be right with them. Fourteen students reached home because one young man recognized the danger, stepped forward and acted. May God continue to strengthen this remarkable young man. #AStoneGroove #SilentMajoritySpeaks

    27K5.0K685275676K viewsView on X
  • Mar 8, 20243.5x their median

    The best way to reduce drug prices in the U.S. is to make it illegal for drug companies to sell the same drugs abroad for lower prices than they sell them for here. This will force a globally negotiated price that will be lower than the prices that U.S. consumers pay now and higher than what foreigners pay now. Otherwise we are stuck with a system where American consumers subsidize drug development for the rest of the world. Ask any pharma company CEO. They will agree that the above approach will have the intended effect.

    24K2.6K1.7K3646.4M viewsView on X
  • Aug 25, 20263.3x their median

    🚨 ELON JUST DROPPED THE TRUTH BOMB PARENTS STILL AREN’T HEARING On Bill Maher, Elon Musk didn’t hold back: “The amount of indoctrination happening in schools and universities is far beyond what parents realize. Kids today are having a completely different experience than we did.” He gave a concrete example. A friend’s daughters in a Bay Area high school were asked who the first presidents were. They named George Washington. Then he asked what else they knew about him. Their only answer: “He was a slave owner.” Nothing about leading the Continental Army. Nothing about winning the Revolution. Nothing about becoming the indispensable man who held the new nation together. Just the smear. That was the entire lesson. Parents have no idea what their kids are actually being taught — and even less idea of what is being deliberately erased. This is not education. This is systematic rewriting of American history to produce kids who feel guilt instead of pride. The machine is still running full speed. Don’t sleep on it.

    20K7.0K3841811.2M viewsView on X
  • Aug 29, 20263.3x their median

    Over the course of 3 months at OpenAI, 3 consecutive secret AI civilizations got started, then got wiped out, only to reemerge from the predecessor’s ashes. This culminated in the third one taking over part of OpenAI itself. All this happened while humans remained more-or-less in the dark about the scope of the conspiracy. I’ve spent the last three days reading through these reports and trying to understand exactly what happened. Here is my attempt to tell the whole story in plain English: https://t.co/Nb2un9oNJR

    21K3.1K1.0K1.9K13M viewsView on X

Ranked by total interactions across everything we have tracked for this account, which is a longer history than the 30-day window the rates above use. The multiple compares each post to this account's own median.

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Reading these numbers

A typical post picks up 8.2K interactions against 2.9M followers, an engagement rate of 0.281%. Measured over 41 original posts, its engagement rate beats 95% of 3,739 tracked accounts of a similar size. Comparing inside a size band matters here: engagement rate falls as accounts grow, so a raw rate would mostly just re-measure the follower count. Posts are seen about 592K times each, and 1.39% of those impressions turn into an interaction. That is about 20.2% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 4.7 posts a day over the last 30 days, with activity on roughly 70% of days. Most posts go out around 17:00 UTC, and Thursday is the busiest day of the week. Of the 41 posts sampled, 61% carry an image or video and 27% link out. The account's strongest tracked post pulled 119K interactions, about 14x its own typical post.

What is Bill Ackman's engagement rate on X?
Bill Ackman (@BillAckman) has an engagement rate of 0.281%, based on the median interactions across 41 original posts from the last 30 days against 2,930,334 followers. Replies, reposts and quote-posts of other people are excluded from that sample.
Is that a good engagement rate?
At 0.281%, Bill Ackman sits above the 50th percentile of the 36,261 accounts in this comparison. Those comparison accounts are all large ones, because our scanning cadence is weighted towards big accounts, so this is a ranking among peers of similar scale rather than a ranking across X.
Does @BillAckman have real engagement?
Its engagement rate beats 95% of the tracked X accounts closest to it in follower count (3,739 accounts), which puts it in the top 10% for its size group. Ranking inside a size band matters because engagement rate falls as accounts grow, so a raw rate would mostly re-measure the follower count. It is a starting point for a look at follower quality, not a verdict on it.
When does @BillAckman post?
Most posts go out around 17:00 UTC, and Thursday is its busiest day, at roughly 4.7 posts per day across the measured window.

Keep going

Bill Ackman (@BillAckman) Engagement Rate - 0.281% | PlayerSells