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星街すいせい☄️Studio STELLAR engagement report

@suisei_hosimati - 1.9M followers on X

Measured over 42 original posts from a 30-day window, last computed on October 8, 2026.

Engagement

Per follower
0.738%
of 1.9M followers
Per impression
4.48%
312K views on a typical post
Reach
16.5%
of its followers see a post
Typical post
14K
interactions (median)
Saved
0.05%
154 bookmarks on a typical post
Posting rate
3.63/day
active 93% of days
Peak time
07:00 UTC
Saturday

A typical post picks up 14K interactions against 1.9M followers, an engagement rate of 0.738%. Posts are seen about 312K times each, and 4.48% of those impressions turn into an interaction. That is about 16.5% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 3.6 posts a day over the last 30 days, with activity on almost every day in the window. Most posts go out around 07:00 UTC, and Saturday is the busiest day of the week. Of the 42 posts sampled, 57% carry an image or video and 43% link out. The account's strongest tracked post pulled 43K interactions, about 3.1x its own typical post. Recurring topics include #ぶいあーる, #星街すいせい, #きらめくほしまち.

Measured over 42 original posts from a 30-day window, last computed on October 8, 2026. Recurring tags: #ぶいあーる, #星街すいせい, #きらめくほしまち.

Where this sits in the catalog

At 0.738%, 星街すいせい☄️Studio STELLAR sits above the 75th percentile of the 155,901 accounts in this comparison. That places it in the top 25% band, which runs 0.604% to 2.32%.

p100.003%
p250.022%
p50 (median)0.127%
p750.604%
p902.32%
p9983.3%
Engagement rate as a share of followers, across the 155,901 accounts we have scanned enough to measure. The axis is logarithmic, because the top and bottom of this population are about 26,040 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 percentile0.003%
25th percentile0.022%
50th percentile0.127%
75th percentile0.604%
90th percentile2.32%
99th percentile83.3%

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 07:00 UTC, and Saturday 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: 07:00 UTC.
0003060912151821
Above the authors' own mediansBelowScale: plus or minus 111%Busiest hour: 07:00 UTC
Show engagement by hour posted, utc as a table
Engagement by hour posted, UTC
Hour (UTC)Vs author medianPosts
00:00 UTC-1%89K
01:00 UTC-2%90K
02:00 UTC-3%88K
03:00 UTC-4%94K
04:00 UTC-5%76K
05:00 UTC-4%75K
06:00 UTC-5%86K
07:00 UTC-5%93K
08:00 UTC-4%108K
09:00 UTC-4%124K
10:00 UTC-3%129K
11:00 UTC-3%141K
12:00 UTC-3%154K
13:00 UTC-3%167K
14:00 UTC-4%173K
15:00 UTC-2%176K
16:00 UTC-3%171K
17:00 UTC-3%159K
18:00 UTC-2%149K
19:00 UTC-2%141K
20:00 UTC-1%131K
21:00 UTC0%116K
22:00 UTC-2%100K
23:00 UTC-1%90K
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: Saturday.
SunMonTueWedThuFriSat
Above the authors' own mediansBelowScale: plus or minus 111%Busiest day: Saturday
Show engagement by day of week as a table
Engagement by day of week
DayVs author medianPosts
Sunday+5%393K
Monday+1%483K
Tuesday-2%520K
Wednesday-3%472K
Thursday-2%430K
Friday-3%447K
Saturday+2%393K
See what moves engagement across the whole catalogWhat counts as a good engagement rate at this size

Formats this account uses

Its own posting mix on the left, and what each of those formats does across every account we track on the right. Only formats where the effect clears our publish test appear here, so an empty row is a format we could not measure rather than one that does nothing.

This account's posting mix compared with catalog-wide effects
FormatThis accountCatalog effect95% intervalAccounts behind it
Image or video57% of posts+111%+108% to +115%34K
Outbound link43% of posts-41%-42% to -40%32K
Typical length--3%-3% to -2%54K
  • 57% of this account's sampled posts carry an image or video. Across the catalog, posts with an image or video run 111% above the same accounts' other posts.
  • 43% of its posts carry a link off X. Across the catalog, posts with an outbound link run 41% below the same accounts' other posts, so a large share of this account's output sits in the weakest bucket we measure.
  • Its average post runs 124 characters, which falls in the 80 - 180 characters band. Across the catalog, posts of 80 to 180 characters run 3% below the same accounts' other posts.

These are catalog-wide differences applied to this account's own posting mix, not a measurement of how each format performs for this account specifically. We keep one median per account, not one per format per account, so the second thing is not something this data can tell you.

Best tweets

  • Aug 6, 20263.1x their median

    // 新イベント「シンクロする夏のスパークル」✨ さくらみこ🌸&星街すいせい☄が登場! \\ イベントに登場する2人の楽曲3曲が新たに追加!🎶 イベントをプレイして、 miCometのイベントメモリーを獲得しよう📸✨ 8/7(金)12:00より開催📣 #ホロドリ https://t.co/LCTZiVGwxX

    31K9.3K4932.1K5.0M viewsView on X
  • Sep 9, 20262.6x their median

    #きらめくほしまち DAY2✌️ おわったああああああああああああ 初めての2DAYS‼️ なにより歌い切れて一安心😭😭😭 たくさん盛り上げてくれてありがとう✨ ツアーはまだ始まったばかり! 次は神戸‼️走り抜けるぞおおおおお https://t.co/Bq6BHGjV58

    30K5.9K1.0K95584K viewsView on X
  • Sep 7, 20262.3x their median

    明日ライブなんて信じられなああああああああああああああああああああああああああああああああああああああああああああい‼️

    29K2.9K62288475K viewsView on X
  • Aug 31, 20262.2x their median

    新デフォ衣装、新お部屋お披露目配信はもう見てくれましたか❓ 玄関で撮った一枚が届いたよん✨ StudioSTELLARではこの衣装をデフォとしてやっていきます!! 新衣装の好きなポイント教えて~~!!!👗 https://t.co/EqatJrxMO2 #ほしまちすたじお https://t.co/vhRXlMuDMT

    27K3.6K33779464K viewsView on X
  • Sep 9, 20262.2x their median

    これは神々しいお城の写真🏰 #きらめくほしまち https://t.co/K1mtfuzXSk

    27K4.3K28756386K viewsView on X
  • Aug 24, 20262.1x their median

    一番怖いのは告知を一個忘れてたこと──────

    27K1.8K41030635K viewsView on X
  • Sep 8, 20262.1x their median

    今日がライブなんて信じられなああああああああああああああああああああああああああああああああああああああああああああい‼️ #きらめくほしまち

    25K2.9K54744457K viewsView on X
  • Sep 8, 20261.9x their median

    #きらめくほしまち 見に来てくれたみんなありがとうございました‼️ ついに始まったツアー、最高の始まりになりました✨ すいちゃん、そしてStudioSTELLARの本気(マジ)を感じてもらえてたら嬉しいです💃 明日も横浜で!がんばるぞおおおおおおおおおおおお 配信でも見てね🫶

    21K4.2K85261443K viewsView on X
  • Sep 27, 20261.9x their median

    #X_VORDER_RUNWAY @幕張メッセ 来てくれた&観てくれたみんなありがとう!! Mika先生デザインのドレスをまとってランウェイ!👗✨ 歩き姿、どうだったかな? 貴重な体験をたくさんさせてくれたイベントでした! また会おうね‼️🫶 https://t.co/jnCGkognF1

    23K3.0K26053385K viewsView on X
  • Sep 18, 20261.8x their median

    私もアソビ★まわりたいな~🤩

    23K1.8K18315469K 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.

Recurring topics

#ぶいあーる#星街すいせい#きらめくほしまち#しぐれうい#ほしまちすたじお

The most frequent hashtags in the sampled posts. They describe what this account writes about; they are not a performance signal, and the catalog-wide breakdown on the hub shows how little hashtag count moves.

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Reading these numbers

A typical post picks up 14K interactions against 1.9M followers, an engagement rate of 0.738%. Posts are seen about 312K times each, and 4.48% of those impressions turn into an interaction. That is about 16.5% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 3.6 posts a day over the last 30 days, with activity on almost every day in the window. Most posts go out around 07:00 UTC, and Saturday is the busiest day of the week. Of the 42 posts sampled, 57% carry an image or video and 43% link out. The account's strongest tracked post pulled 43K interactions, about 3.1x its own typical post. Recurring topics include #ぶいあーる, #星街すいせい, #きらめくほしまち.

What is 星街すいせい☄️Studio STELLAR's engagement rate on X?
星街すいせい☄️Studio STELLAR (@suisei_hosimati) has an engagement rate of 0.738%, based on the median interactions across 42 original posts from the last 30 days against 1,893,072 followers. Replies, reposts and quote-posts of other people are excluded from that sample.
Is that a good engagement rate?
At 0.738%, 星街すいせい☄️Studio STELLAR sits above the 75th percentile of the 155,901 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 @suisei_hosimati have real engagement?
There is not yet enough sample to rank this account against others of its size.
When does @suisei_hosimati post?
Most posts go out around 07:00 UTC, and Saturday is its busiest day, at roughly 3.63 posts per day across the measured window.

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