Compare
SERA vs CSTL
TheDesperateTrader.com· Side-by-side stock comparison
$SERA vs $CSTL head to head: price, market cap, valuation, dividend, free float, relative volume and how actively each trades. The bigger value in the size rows is bolded. Tap either ticker for its live chart, full ownership breakdown and real-time alerts.
$2.11
Price
$34.20
-1.4%
Day change
+0.0%
$84M
Market cap
$1.04B
—
P/E ratio
—
—
Dividend yield
—
26.3M
Free float
28.6M
47.58%
Institutional
97.04%
35K
Avg volume
431K
0.4x
Rel. volume
1.3x
23% of 52w
52-week range
62% of 52w
0
Scanner alerts 30d
32
SERVICES-MEDICAL LABORATORIES
Sector
SERVICES-MEDICAL LABORATORIES
SERA vs CSTL: the quick read
- ·CSTL is the larger company by market cap ($1.04B vs $84M).
- ·CSTL has been more active on our scanner (32 vs 0 alerts in 30 days).
- ·SERA has the smaller float (26.3M vs 28.6M), which tends to mean sharper, more volatile moves.
- ·Both are services-medical laboratories names, so this is a like-for-like comparison and sector news tends to move them together.
- ·They trade in different worlds by share price: SERA is a low-priced stock where a few cents is a real percentage move, while the other is priced for steadier increments.
- ·Only one of them shows up on our scanner: CSTL triggered 32 unusual-volume alerts in the last 30 days and the other triggered none.
- ·They are not really peers by size: CSTL is more than 12x the market cap of SERA, so the same dollar of news moves SERA far harder.
Objective differences only. Not investment advice.
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Frequently asked questions
Everything you need to know comparing SERA and CSTL on TheDesperateTrader.
- Is SERA or CSTL the better stock?
- "Better" depends on your goal, and these two are not alike. CSTL is the larger company by market cap ($1.04B vs $84M). CSTL has been more active on our scanner (32 vs 0 alerts in 30 days). SERA has the smaller float (26.3M vs 28.6M), which tends to mean sharper, more volatile moves. Those are the measured differences, not a recommendation, and nothing here is investment advice.
- What is the difference between SERA and CSTL?
- The differences that matter: CSTL is roughly 12x the size of the other by market cap ($84M vs $1.04B); they trade at very different share prices ($2.11 vs $34.20); SERA sits at 23% of its 52-week range against 62% for CSTL; our scanner flagged SERA 0 times in the last 30 days against 32 for CSTL. Everything above is measured from the latest completed session and SEC filings.
- Which of SERA and CSTL is more active right now?
- Right now SERA is at about 0.4x its normal volume and CSTL is at about 1.3x, so CSTL is the one drawing unusual attention today. Relative volume (RVOL) compares a stock's volume to its own recent average, so it reads the same way for a megacap and a microcap and is the quickest way to tell which of two similar names is actually in play.
- Is this comparison data live?
- Prices and % changes are anchored to the latest completed session and split-adjusted, so a reverse split never shows as a fake move. Float is estimated from SEC filings and refreshed as new filings publish.
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