星街すいせい☄️Studio STELLAR engagement report
@suisei_hosimati - 1.9M followers on X
Measured over 41 original posts from a 30-day window, last computed on August 21, 2026.
Engagement
A typical post picks up 6.6K interactions against 1.9M followers, an engagement rate of 0.348%. Measured over 41 original posts, its engagement rate beats 93% of 330 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 287K times each, and 2.29% of those impressions turn into an interaction. That is about 15.2% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 2.7 posts a day over the last 30 days, with activity on almost every day in the window. Most posts go out around 09:00 UTC, and Tuesday is the busiest day of the week. Of the 41 posts sampled, 68% carry an image or video and 73% link out. The account's strongest tracked post pulled 43K interactions, about 6.6x its own typical post. Recurring topics include #ぶいあーる, #ましろ爻, #市松寿ゞ謡.
Measured over 41 original posts from a 30-day window, last computed on August 21, 2026. Recurring tags: #ぶいあーる, #ましろ爻, #市松寿ゞ謡.
Compared with accounts its own size
星街すいせい☄️Studio STELLAR's engagement rate beats 93% of the tracked X accounts closest to it in follower count (330 accounts, accounts of similar size (decile 2 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 70% 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 0.348%, 星街すいせい☄️Studio STELLAR sits above the 75th percentile of the 9,573 accounts in this comparison. That places it in the top 25% band, which runs 0.318% to 2.70%.
Show the percentile table
| Percentile | Engagement rate |
|---|---|
| 10th percentile | 0.001% |
| 25th percentile | 0.006% |
| 50th percentile | 0.045% |
| 75th percentile | 0.318% |
| 90th percentile | 2.70% |
| 99th percentile | 370.4% |
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 09:00 UTC, and Tuesday 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.
Show engagement by hour posted, utc as a table
| Hour (UTC) | Vs author median | Posts |
|---|---|---|
| 00:00 UTC | +10% | 4.7K |
| 01:00 UTC | +7% | 4.6K |
| 02:00 UTC | +4% | 4.7K |
| 03:00 UTC | +4% | 4.6K |
| 04:00 UTC | +5% | 4.2K |
| 05:00 UTC | -2% | 4.2K |
| 06:00 UTC | -10% | 4.2K |
| 07:00 UTC | -3% | 4.7K |
| 08:00 UTC | -5% | 5.5K |
| 09:00 UTC | +7% | 6.1K |
| 10:00 UTC | +1% | 7.0K |
| 11:00 UTC | -3% | 7.6K |
| 12:00 UTC | -3% | 8.7K |
| 13:00 UTC | -1% | 10K |
| 14:00 UTC | -5% | 11K |
| 15:00 UTC | -6% | 12K |
| 16:00 UTC | -3% | 12K |
| 17:00 UTC | -4% | 11K |
| 18:00 UTC | +1% | 9.5K |
| 19:00 UTC | -2% | 8.7K |
| 20:00 UTC | -2% | 7.7K |
| 21:00 UTC | +5% | 6.6K |
| 22:00 UTC | +3% | 5.7K |
| 23:00 UTC | +7% | 4.7K |
Show engagement by day of week as a table
| Day | Vs author median | Posts |
|---|---|---|
| Sunday | +18% | 25K |
| Monday | +10% | 41K |
| Tuesday | -24% | 42K |
| Wednesday | +2% | 14K |
| Thursday | 0% | 16K |
| Friday | 0% | 19K |
| Saturday | +16% | 22K |
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.
| Format | This account | Catalog effect | 95% interval | Accounts behind it |
|---|---|---|---|---|
| Image or video | 68% of posts | +53% | +46% to +62% | 1.9K |
| Outbound link | 73% of posts | -52% | -54% to -49% | 2.2K |
| Typical length | - | -8% | -10% to -6% | 3.0K |
- 68% of this account's sampled posts carry an image or video. Across the catalog, posts with an image or video run 53% above the same accounts' other posts.
- 73% of its posts carry a link off X. Across the catalog, posts with an outbound link run 52% 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 145 characters, which falls in the 80 - 180 characters band. Across the catalog, posts of 80 to 180 characters run 8% 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, 20266.6x 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
- Aug 4, 20263.8x their median
なんだこれは……?👀 https://t.co/zInV0MsMeZ
- Jul 27, 20263.5x their median
🌸🌸8/1(土)21:00配信予定🌸🌸 / さくらみこ8周年記念3D配信✨ 🌸密告⁉#みこち超重大発表📣 \ ホロメンゲスト多数⁉ 最後にミニライブあり‼ なにを密告されるのか・・・⁉ お楽しみに・・🙄🌸 3Dゲストはすいスバフブ‼☄🚑🌽 🔽待機所🔽 https://t.co/QqkDCvdYuW https://t.co/C8l9Tqvfys
- Aug 3, 20263.2x their median
ホロドリ人差し指練習してるんですがまじで三曲くらいで指攣りそうになる🤨 どうしたらええのん‼️
- Jul 29, 20263.2x their median
仕事でねねのライブ見れなかった😭 アーカイブ待すいせいです
- Aug 13, 20262.7x their median
ツアーに向けてのダンスレッスンをみっちりやってきたど‼️💃 つかりた……👼👼👼
- Jun 25, 20262.5x their median
☄️#星街すいせい アリーナツアー☄️ ツアーグッズ受注受付開始🙌 こだわったアイテムがたくさんなので、絶対チェックしてね👀✨ 🔽販売ページはこちら https://t.co/LUevrZO9wB #きらめくほしまち https://t.co/rd6Dekjava
- Aug 9, 20262.4x their median
🌟配信情報🌟 このあと 🕖 19時から! 🎶 ホロドリ初配信 🎶 ホロドリくんたくさんやってるのに初配信‼ ガチャ全然引けてません とりあえず音ゲーを楽しむ🎶 🔽待機所🔽 https://t.co/hEK97bTdVv #ほしまちすたじお https://t.co/7jACbgyB81
- Aug 10, 20262.4x their median
🩰💃💨
- Aug 11, 20262.4x their median
👻夏の怖いエピソード大募集🍉 配信で紹介する、みんなの身の回りの ホラーエピソードを募集します‼ 8/24、配信予定👻 ▼怖いエピソード募集フォーム https://t.co/k1Lt5Npdr1 ▼怖い画像・動画募集フォーム https://t.co/VidC9vtYp7 #ほしまちすたじお https://t.co/5drWu8SMtt
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
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 6.6K interactions against 1.9M followers, an engagement rate of 0.348%. Measured over 41 original posts, its engagement rate beats 93% of 330 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 287K times each, and 2.29% of those impressions turn into an interaction. That is about 15.2% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 2.7 posts a day over the last 30 days, with activity on almost every day in the window. Most posts go out around 09:00 UTC, and Tuesday is the busiest day of the week. Of the 41 posts sampled, 68% carry an image or video and 73% link out. The account's strongest tracked post pulled 43K interactions, about 6.6x its own typical post. Recurring topics include #ぶいあーる, #ましろ爻, #市松寿ゞ謡.
- 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 0.348%, based on the median interactions across 41 original posts from the last 30 days against 1,885,784 followers. Replies, reposts and quote-posts of other people are excluded from that sample.
- Is that a good engagement rate?
- At 0.348%, 星街すいせい☄️Studio STELLAR sits above the 75th percentile of the 9,573 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?
- Its engagement rate beats 93% of the tracked X accounts closest to it in follower count (330 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 @suisei_hosimati post?
- Most posts go out around 09:00 UTC, and Tuesday is its busiest day, at roughly 2.73 posts per day across the measured window.