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ALAB

Astera Labs, Inc. Common Stock · XNAS · 131 sessions on record
$355.97▼ −1.87 · −0.5%from $357.84 the session before · Sep 30, 2026 close · end of day
Open
$359.71
High
$363.00
Low
$343.38
Day's range
$205.5% of the previous close
VWAP
$353.10close +0.81% from it
Volume, shares
3.27M0.79× the 20-session average
Traded, $
$1.15B
Trades
73.8K44 shares per trade
Previous close
$357.84−1.87 to the close
Market cap
—
Day range64% of the way up
$343.38$363.00
52-week range64% of the way up
$97.89 Mar 30$499.48 Jun 30

−29% from the high · +260% from the low

The desk read · Sep 30expiry Oct 16 · 16 days
balanced
options read
calls 55% · puts 45% of OI
0.82
puts per call, by OI
Oct 16 expiry 0.67
$292.50
max pain
−18% from the close
$390.00
most call OI
1.45K contracts · +9.6% from the close
▲ +3.1%
option OI on the day
+7.59K contracts · 252K open

Balanced into a 16-day expiry: 0.82 puts per call by open interest, option OI +3.1% on the day, the most call OI sits at $390.00, the most put OI at $300.00, max pain $292.50.

Options

Sep 30 open interest · 18 expiries listed

ALAB options carry 252K contracts of open interest across 18 expiries, 13% of it in the Oct 16 contract, with 0.82 puts per call.

Open interest by expirythe next 8 of 18 expiries · share of all open interest
Option open interest by expiry, the next 8 expiries
ExpiryCall OI · on the dayPut OI · on the dayPuts per callShare of OI %Strikes
Oct 22 days20.6K+3.27K12.1K+6610.5913127
Oct 99 days4.7K+6074K+6030.853.5110
Oct 1616 days19.6K+40713.2K+840.6713114
Oct 2323 days2.14K+842.3K+3541.071.863
Oct 3030 days1.51K+262.17K+1531.431.563
Nov 637 days156+32456+1762.920.2461
Nov 2051 days13K+17617.4K+2691.341285
Dec 1879 days11.3K−1711.2K+840.998.979

71% of open interest sits beyond the Oct 16 contract · 114 strikes listed for it · 252K contracts open in all

Monthly contractOct 16 expiry · 16 days

The Oct 16 contract holds 19.6K calls and 13.2K puts, the most call OI at $390.00 and the most put OI at $300.00; max pain $292.50, −18% from the close.

Call OI, contracts
19.6K+407 on the day
Put OI, contracts
13.2K+84 on the day
Puts per call, by OI
0.67all expiries 0.82
Max pain
$292.50−18% from the close
Strikes listed
114for this expiry
Open interest by strike, contractstop three strikes each side
Calls
Strike
Puts
1.12K
$500.00
1.45K
$390.00
$300.00
934
$290.00
805
$230.00
882
1.05K
$210.00
Open interest added on the day, contractsthree largest additions each side
Calls
Strike
Puts
+251
$400.00
+102
$380.00
+20
$370.00
$355.00
+48
$350.00
+13
$320.00
+18
Close $ · S&P 500 rebased to the first close126 sessions to Sep 30 · axis fixed at 4 × ATR-14 around the last close
131 sessions on file · from Mar 25
ALAB close over the last 126 sessions, with S&P 500 rebased to the first close106.33294.68483.02axis spans 354%S&P 500ALABApr 1Jul 2Sep 30126 sessions from Apr 1 to Sep 30; the price axis spans 354 percent.

Quarterly results

SEC filings

No results filed on record for ALAB yet.

Fundamentals

arithmetic on filings and the close

No filing on record for ALAB yet, so nothing to compute.

Shareholding

quarter to Jun 2026 · SEC Form 13F

No open-market insider buying or selling in the last 90 days.

Held by 13F managers
—
Shares held
245M−0.06% on Mar 2026 among managers filing both
Managers holding
927664 a quarter earlier
Largest holder
—FMR LLC
Largest 10 holderspercent of shares outstanding · change in shares against the previous quarter
Largest 13F holders of ALAB
ManagerSharesOf outstandingValueChange on quarter
FMR LLC49.7M—$24.00B−1.37M
BlackRock, Inc.27.4M—$13.22B+4.47M
VANGUARD PORTFOLIO MANAGEMENT LLC15.8M—$7.62B+1.16M
VANGUARD CAPITAL MANAGEMENT LLC13.5M—$6.50B+773K
Invesco Ltd.9.82M—$4.74B+9.08M
STATE STREET CORP7.36M—$3.55B+689K
GEODE CAPITAL MANAGEMENT, LLC5.59M—$2.69B+576K
VAN ECK ASSOCIATES CORP4.48M—$2.16B—
BANK OF AMERICA CORP /DE/4.4M—$2.12B+820K
JPMORGAN CHASE & CO3.55M—$1.62B—
Insider tradesSEC Forms 3, 4 and 5 · the latest 10

No open-market insider buying or selling in the last 90 days.

ALAB insider trades
InsiderTradeSharesPriceHeld after
Mayer BethanyDirectorsold · Jun 24, 2026193$392.675,944
Mayer BethanyDirectorsold · Jun 24, 202654$393.865,890
Mayer BethanyDirectorsold · Jun 24, 2026165$398.325,579
Mayer BethanyDirectorsold · Jun 24, 202629$399.965,550
Mayer BethanyDirectorsold · Jun 24, 202699$391.276,137
Mayer BethanyDirectorsold · Jun 24, 2026146$396.495,744
BARRATT CRAIG HDirectorgranted · Jun 4, 2026837$0.006,825
LAZAR JACK RDirectorsold · Jun 4, 2026243$344.0376,415
LAZAR JACK RDirectorsold · Jun 4, 2026527$342.5575,888
LAZAR JACK RDirectorsold · Jun 4, 2026246$345.2476,658

Corporate actions

exchange records

No corporate action on record for ALAB yet.

Price history

131 sessions on record · to Sep 30 · end of day

ALAB is +27.2% over 20 sessions against the S&P 500's +0.1%, 29% below its 52-week high, realised volatility 93% annualised.

Returns against S&P 500longest window first · S&P 500 over the same sessions
Returns of the stock and S&P 500 over six windows, longest first
WindowFrom $ALAB %S&P 500 %Difference pp
120 sessionssince Apr 9$129.46▲ +170%▲ +12%+160
60 sessionssince Jul 7$382.89▼ −7.0%▲ +2.0%−9.0
20 sessionssince Sep 1$279.92▲ +27%▲ +0.11%+27
5 sessionssince Sep 23$360.48▼ −1.2%▼ −0.67%−0.58
1 sessionsince Sep 29$357.83▼ −0.52%▼ −0.21%−0.31
Averages of the closeclose against each average
5-session average
$358.05close −0.58% from it
20-session average
$313.15close +14% from it
50-session average
$307.68close +16% from it
Range and volumetrue range over 14 sessions · high to low over 20 · volume against the 20-session average
Average true range, 14
$226.2% of the close
Average day's range, 20
$236.5% of the close
Volume against 20 sessions
0.79×3.27M vs 4.12M average
Volatility and co-movement with S&P 500annualised from daily returns
Realised volatility, 20
93%≈ ±5.9% a session · moved more than that on 7 of 20
Realised volatility, 60
96%≈ ±6.0% a session · moved more than that on 15 of 60
Beta to S&P 500, 60
4.97moved with S&P 500 on 38 of 60 sessions
Up and down sessionscloses above and below the previous close
Last 20 sessions
12 up · 8 downof 20
Last 60 sessions
30 up · 30 downof 60
Best session, 250
▲ +20%Jul 30
Worst session, 250
▼ −12%Jul 13

Astera Labs, Inc. Common Stock is held by

3 headlines on ALAB

latest Oct 1, 2026 · links go to the publisher

Short-sale volume

25 sessions · to Sep 30, 2026

Short sales were 44% of reported volume on Sep 30, 2026, against 51% over the last 25 sessions.

Last 10 sessionsshare of the day's reported volume
ALAB daily short-sale volume
SessionShort volumeReported volumeShort share
Sep 30, 2026559K1.28M43.7%
Sep 29, 2026539K1.09M49.6%
Sep 28, 2026827K1.65M50.1%
Sep 25, 2026753K1.26M59.7%
Sep 24, 2026842K1.31M64.3%
Sep 23, 2026695K1.38M50.2%
Sep 22, 20261.47M2.32M63.1%
Sep 21, 20261.25M2.08M60.1%
Sep 18, 2026816K1.33M61.5%
Sep 17, 2026784K1.69M46.3%

Filings

SEC EDGAR · newest first
ALAB SEC filings
FiledFormReport date
Sep 3, 20264Sep 2, 2026
Sep 3, 20264Sep 1, 2026
Sep 2, 2026144—
Sep 1, 2026144—
Sep 1, 2026144—
Sep 1, 2026144—
Aug 19, 20264Aug 17, 2026
Aug 19, 20264Aug 17, 2026
Aug 19, 20264Aug 17, 2026
Aug 10, 20264Aug 6, 2026
Aug 6, 2026144—
Aug 5, 202610-QJun 30, 2026
Aug 4, 20268-KAug 4, 2026
Jul 27, 2026SCHEDULE 13G/A—
Jul 22, 20264Jul 20, 2026
Jul 6, 20264Jul 1, 2026
Jul 6, 20264Jul 1, 2026
Jul 6, 20264Jul 1, 2026
Jul 2, 20264Jul 1, 2026
Jul 1, 2026144—
Jul 1, 2026144—
Jul 1, 2026144—
Jul 1, 2026144—
Jun 26, 20264Jun 24, 2026
Jun 24, 2026144—

About Astera Labs, Inc. Common Stock

SEC and exchange records
Company
Astera Labs, Inc. Common Stock
Exchange
XNAS
SEC CIK
1736297
Sessions on record
131
Price source
End of day · delayed
Computed
2 Oct, 02:28 am IST

OI Charts is not a registered investment adviser or broker-dealer. Prices, filings and open interest are public data and arithmetic on it, not a basis for any investment decision.