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Market closed, from the scannerPrice and score as of 4:45 PM ET, delayed 15 minutes
CSTL
Castle Biosciences, Inc.
Average
$35.34-3.92%Services-Medical Laboratories · $988M
Quality Score
6
Average
Traits firing
5 of 13
Trending up
In its industry
#10
of 13 names
From 52-week high
-20.2%
Above the 200-day
A slice of the scanner. Members see all 14 checks and every score line on CSTL, every stock ranked, the chart, and optional alerts.Start free trial →
Reports in 18 daysWhy it scores 65 of 13 traits firing4 insider filingsRanked against 13 in its industry
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Earnings
When does CSTL report, and what happens after?
An estimate; the company has not confirmed a date. When it does, the 8-K sets it.
Reports in 18 daysaround Oct 7, 2026, after close, estimated.
Over its last 4 reports it gapped -1.9% on average and closed -5.5%, finishing higher 50% of the time.
+2.9%-7.3%-22.3%+4.5%
Jan 13Feb 26May 6Jul 30
| Reported |
|---|
Quality Score
Why CSTL scores 6
The two largest lines, with the reason behind each. Every line adds up to the badge; members see all of them.
6Quality
AverageAverageTrending up, 5 of 13 traits firing
AverageAverageTrending up, 5 of 13 traits firing
Average is 5, Good 10, Strong 14, Exceptional 18.
- +5
Momentum traits
5 of CSTL's 13 conditions are firing
One check from each of the four groups is shown, a firing one when the group has one. Volume expansion and volume dry-up cannot both be true, so 13 is the most any stock can score.
Trend1 on, 1 of 5 shown
MA FAN21 EMAW.EMAHH/HL52W HI
The moving averages stack in order. Price holds above a rising 21-day line. The weekly chart agrees, and the stock sits near its 52-week high.
Volume1 on, 1 of 3 shown
VOLVDUU/D VOL
Heavy volume when the stock runs, and quiet volume while it rests. More shares change hands on up days than on down days.
Tight range0 on, 1 of 3 shown
ATR SQZSQUEEZENR7
The daily trading range gets tight against the stock's own history. Quiet ranges do not stay quiet forever.
Insider filings
Who is buying and selling CSTL inside the company
Open-market Form 4 filings from the SEC, newest filing first. Grants, option exercises, and tax withholding are left out.
2 insiders sold $1.6M across 4 filings in the last 6 months. No open-market buys on record.
- SellKristen M Oelschlager$412KChief Operating Officerat $33.69 on Aug 24, filed Aug 26SellKristen M OelschlagerChief Operating Officer$412Kat $33.69 on Aug 24, filed Aug 26
- SellKristen M Oelschlager$245KChief Operating Officerat $34.26 on Aug 25, filed Aug 26Sell
Optional alerts
Have CSTL tell you.
Alerts are off until you set one. This is the push CSTL's own filing would have sent.
BreakawayAug 26Kristen M Oelschlager sold CSTL$412K at $33.69, filed Aug 26
Your rule: an insider buys CSTL.This is what the push looks like.
Government trade disclosedInsider buying filedEarnings within a few daysNews catalystNew 52-week highA pre-market or after-hours moveVolume above a level you pickSqueeze setup appearsMACD bullish crossA price you pick
21 rules in all, on one stock or on every stock, by push or by email.
Its industry
How CSTL ranks in Services-Medical Laboratories
CSTL is 10 of 13 by Quality Score. The three highest are ranked; the rest are listed by name, with their scores for members.
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Questions
Straight Answers
Where does the data come from?
Daily bars, quotes, reference data, headlines, and short interest come from Massive, formerly Polygon, a licensed market data vendor. The age of the quotes is shown at the top of every page. Insider trades, notable holders and profits come straight from the SEC. That means Form 4 filings, 13F filings and XBRL financial data on EDGAR. Government trades come from the public STOCK Act and Office of Government Ethics filings. The market-wide headlines on the market line also come from the public headline feeds CNBC, MarketWatch and Yahoo Finance publish, shown as the headline, the source and a link to the article. Splits, dividends, and the financial statements on each ticker page come from the vendor's reference data. The 8-K filings on EDGAR are read for the items that move a price. Five years of history is loaded for every stock. So the 200-day and 52-week traits and the setup odds rest on real history. Options flow is not part of the product.
How often does it update?
The scan rebuilds every 15 seconds while the market is open, and every five minutes when it is closed. An open scanner tab picks up each rebuild without a refresh. Prices, scores, the ranking and the market line update in place. Nothing flickers when nothing has changed. The whole-market movers refresh every 15 seconds too. News sweeps the whole list every few minutes. Congress filings are checked every hour, insider filings every three hours and earnings every six, and a company expected to report tonight or this morning is checked every five minutes until its filing lands. Short interest, holders, and profits refresh on their own schedules. The ticker page states each schedule beside the figure.
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A screening tool for momentum traders. It ranks technical and news conditions. It is not investment advice, and nothing here is a recommendation to buy or sell any security. The price, the score, the traits, and the industry rank on this page are delayed at least 15 minutes. Filings are shown as filed, because a disclosure is already days or weeks old when it becomes public. Earnings dates and past reactions are settled sessions.