Home›Stocks›RBLX

RBLX — structural market context

Roblox Corporation

Structural market context from public regulatory and market data, shown with its as-of dates. Descriptive only: nothing on this page is a recommendation, a prediction, or advice to buy or sell any security.

What changed

As of the close on Oct 21. Each line shows the earlier value, the later value and their dates.

Price

Close $52.55 (Oct 21) vs $52.35 (Oct 20): +0.38%.

Volume

0.40× its 20-session average (12.4M) on Oct 21.

Includes pre- and post-market trading.

Short interest

Short interest 27.6M shares (settlement Sep 30) vs 24.3M (Sep 15).

No new publication in this window. Latest: settlement Sep 30, published Oct 10.

Fails-to-deliver

Latest file (settlements Sep 15–Sep 30, published Oct 16): 6 days with fails, largest 47K shares on Sep 16.

Previous file (settlements Sep 1–Sep 14, published Sep 30): 4 days with fails, largest 4K shares on Sep 8.

No new publication in this window.

Analyst rating actions

None recorded in this window.

Insider filings (Form 4)

None recorded in this window.

RBLX: what the public data shows

Each row is the latest public record we hold for RBLX, with its own date and source. Figures are descriptive and delayed by their source.

DataLatest recordAs ofSource
Short interest→ Short Interest & FTD tracker27.6M shares short · 2.0 days to cover · 4.3% of float · +13.8% vs 2026-09-152026-09-30FINRA
Fails-to-deliver→ Short Interest & FTD tracker465 shares failed to deliver on 2026-09-282026-09-28SEC fails-to-deliver files
Insider Form 4 (P/S)→ Insider Buying tracker0 purchases and 29 sales in 12 months · latest filed 2026-10-06 by Reinstra Mark2026-10-06SEC Form 4
Analyst rating actions5 recent actions · latest published by UBS on 2026-10-142026-10-14Firms' published actions
Short interest→ Short Interest & FTD tracker
Latest record
27.6M shares short · 2.0 days to cover · 4.3% of float · +13.8% vs 2026-09-15
As of
2026-09-30
Source
FINRA
Fails-to-deliver→ Short Interest & FTD tracker
Latest record
465 shares failed to deliver on 2026-09-28
As of
2026-09-28
Source
SEC fails-to-deliver files
Insider Form 4 (P/S)→ Insider Buying tracker
Latest record
0 purchases and 29 sales in 12 months · latest filed 2026-10-06 by Reinstra Mark
As of
2026-10-06
Source
SEC Form 4
Analyst rating actions
Latest record
5 recent actions · latest published by UBS on 2026-10-14
As of
2026-10-14
Source
Firms' published actions

RBLX events and their magnitude

Latest SEC filing in the event study

Form 4 · other · filed 2026-10-20 · View on sec.gov ↗

…

Open the Event Study →

RBLX short interest & days to cover

SHARES SHORT
27.6M
% OF FLOAT
4.3%
DAYS TO COVER
2.0
CHANGE VS PRIOR
+13.8%

FINRA consolidated short interest, reported twice a month and published ~2 weeks after each settlement date. % of float uses reported free float. · as of 2026-09-30 (23d ago)

RBLX fails-to-deliver (FTD)

Settlement dateFailed sharesPrice
2026-09-28 · 25d465$46.44
2026-09-21 · 32d76$47.82
2026-09-18 · 35d5K$47.5

SEC fails-to-deliver files, published twice a month with ~6 weeks of delay.

RBLX insider buying and selling (Form 4)

Last 12 months, Form 4 codes P and S: 0 purchases · 29 sales

Most recent Form 4 shown for RBLX: Reinstra Mark (Chief Legal Off. & Corp. Sec.) reported a sale (code S) of 3,000 shares at $43.88 on 2026-10-05, filed 2026-10-06 (1 day after the trade).

InsiderTypeSharesPriceValueTrade dateFiled
Reinstra Mark · officer: Chief Legal Off. & Corp. Sec.Sale (S)3K$43.88$132K2026-10-052026-10-06 · +1d
Reinstra Mark · officer: Chief Legal Off. & Corp. Sec.Sale (S)3K$44.56$119K2026-10-052026-10-06 · +1d
Baszucki Gregory · directorSale (S)3K$42.57$128K2026-10-012026-10-02 · +1d
Baszucki Gregory · directorSale (S)5K$43.03$229K2026-10-012026-10-02 · +1d
Baszucki Gregory · directorSale (S)3K$42.57$128K2026-10-012026-10-02 · +1d

SEC Form 4 filings: purchases and sales reported on Form 4 (transaction codes P and S) only; grants and option exercises excluded. Attributed public records.

RBLX analyst ratings

FirmActionRatingPublished
UBSholdNeutral2026-10-14
UBSprice_target—2026-10-14
D.A. Davidsonprice_target—2026-10-14
Wells FargodowngradeCautious (from Overweight)2026-10-12
JefferiesdowngradeUnderperform (from Hold)2026-09-28

Rating actions as published by the firms, from public feeds. They are not graded here.

Frequently asked questions

What is RBLX's short interest?
As of the FINRA settlement date 2026-09-30, RBLX had 27.6M shares sold short — 4.3% of its float, with 2.0 days to cover at average volume. FINRA publishes this data roughly two weeks after each twice-monthly settlement, so it is inherently delayed. A short-interest figure describes an aggregate position; it does not predict what the stock will do.
Are insiders buying RBLX?
In the last 12 months of SEC Form 4 filings, RBLX recorded 0 insider purchases and 29 sales reported on Form 4 (transaction codes P and S; grants and option exercises excluded). These are attributed public records — information, not instruction.
What do analysts say about RBLX?
The most recent action: UBS hold to Neutral on 2026-10-14. Rating actions are shown as published by the firms; they are not graded here.
Is this page telling me to buy or sell RBLX?
No. Everything on this page is descriptive, structural market context from public data, shown with its as-of dates. TradeAI News does not issue directional recommendations, price predictions, or buy/sell advice — for any ticker.
All covered stocksShort Interest & FTD trackerInsider Buying trackerThe platform

More tickers starting with R

RAL · Ralliant CorporationRCUS · Arcus Biosciences, Inc.RDDT · Reddit, Inc.RDEIY · Redeia Corporacion SARGLD · Royal Gold, Inc.RKLB · Rocket Lab CorporationAll R →

RBLX: the full history

Latest rows shown. Full history, market-wide screens, cluster detection and the context journal live in the dashboard.

Start free →View plans →

Not financial advice. Trading involves risk. Descriptive structural context, never a recommendation.