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SNDK

Sandisk Corporation Common Stock · XNAS · 131 sessions on record
$1,739.89▲ +10.13 · +0.6%from $1,729.76 the session before · Sep 30, 2026 close · end of day
Open
$1,729.78
High
$1,756.00
Low
$1,720.71
Day's range
$352.0% of the previous close
VWAP
$1,739.87close +0.00% from it
Volume, shares
6.05M0.62× the 20-session average
Traded, $
$10.53B
Trades
318K19 shares per trade
Previous close
$1,729.76+10.13 to the close
Market cap
—
Day range54% of the way up
$1,720.71$1,756.00
52-week range66% of the way up
$558.58 Mar 30$2,354.39 Jun 22

−26% from the high · +210% from the low

The desk read · Sep 30expiry Oct 16 · 16 days
balanced
options read
calls 45% · puts 55% of OI
1.23
puts per call, by OI
Oct 16 expiry 1.27
$1,660.00
max pain
−4.6% from the close
$2,000.00
most call OI
2.08K contracts · +15% from the close
▲ +1.9%
option OI on the day
+17.2K contracts · 932K open

Balanced into a 16-day expiry: 1.23 puts per call by open interest, option OI +1.9% on the day, the most call OI sits at $2,000.00, the most put OI at $1,400.00, max pain $1,660.00.

Options

Sep 30 open interest · 19 expiries listed

SNDK options carry 932K contracts of open interest across 19 expiries, 9.4% of it in the Oct 16 contract, with 1.23 puts per call.

Open interest by expirythe next 8 of 19 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 days51.8K+6.99K41.7K+1.57K0.8010319
Oct 99 days14.4K+1.78K14.5K+2.88K1.013.1297
Oct 1616 days38.6K+54648.9K+4871.279.4257
Oct 2323 days5.19K+4037.53K+5081.451.4288
Oct 3030 days3.98K+3377.05K+4941.771.2244
Nov 637 days856+461.11K+2081.300.21228
Nov 2051 days24.6K+16834.6K+801.416.4313
Dec 1879 days41.8K−8045.5K+401.099.4351

77% of open interest sits beyond the Oct 16 contract · 257 strikes listed for it · 932K contracts open in all

Monthly contractOct 16 expiry · 16 days

The Oct 16 contract holds 38.6K calls and 48.9K puts, the most call OI at $2,000.00 and the most put OI at $1,400.00; max pain $1,660.00, −4.6% from the close.

Call OI, contracts
38.6K+546 on the day
Put OI, contracts
48.9K+487 on the day
Puts per call, by OI
1.27all expiries 1.23
Max pain
$1,660.00−4.6% from the close
Strikes listed
257for this expiry
Open interest by strike, contractstop three strikes each side
Calls
Strike
Puts
1.89K
$3,530.00
2.08K
$2,000.00
1.23K
$1,900.00
$1,400.00
2.2K
$900.00
2.13K
$840.00
2.09K
Open interest added on the day, contractsthree largest additions each side
Calls
Strike
Puts
+152
$3,100.00
+75
$2,590.00
+71
$2,200.00
$1,780.00
+238
$1,645.00
+58
$1,400.00
+135
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
SNDK close over the last 126 sessions, with S&P 500 rebased to the first close692.7315142335axis spans 237%S&P 500SNDKApr 1Jul 2Sep 30126 sessions from Apr 1 to Sep 30; the price axis spans 237 percent.

Quarterly results

SEC filings

No results filed on record for SNDK yet.

Fundamentals

arithmetic on filings and the close

No filing on record for SNDK 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
214M−8.5% on Mar 2026 among managers filing both
Managers holding
1,7251,103 a quarter earlier
Largest holder
—BlackRock, Inc.
Largest 10 holderspercent of shares outstanding · change in shares against the previous quarter
Largest 13F holders of SNDK
ManagerSharesOf outstandingValueChange on quarter
BlackRock, Inc.20.6M—$46.82B−216K
VANGUARD CAPITAL MANAGEMENT LLC19.3M—$43.97B+284K
FMR LLC15.7M—$35.75B−11.1M
STATE STREET CORP11.9M—$26.95B+707K
Invesco Ltd.11.2M—$25.51B+8.89M
JPMORGAN CHASE & CO7.88M—$16.16B—
GEODE CAPITAL MANAGEMENT, LLC7.18M—$16.31B−1.24M
VANGUARD PORTFOLIO MANAGEMENT LLC7.03M—$15.99B−121K
Clear Street Group Inc.5.97M—$13.57B+3.52M
Situational Awareness LP4.99M—$11.35B+2.71M
Insider tradesSEC Forms 3, 4 and 5 · the latest 10

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

SNDK insider trades
InsiderTradeSharesPriceHeld after
Shek BernardOfficerwithheld for tax · Jun 20, 2026117$2,184.7532,115
Shek BernardOfficersold · Jun 3, 2026600$1,736.0032,232
Ilkbahar AlperOfficersold · Jun 1, 2026999$1,755.3153,678
Ilkbahar AlperOfficergift · Jun 2, 20262,694$0.0049,983
Ilkbahar AlperOfficersold · Jun 1, 2026600$1,758.4052,677
Ilkbahar AlperOfficersold · Jun 1, 2026401$1,757.0053,277
Ilkbahar AlperOfficerwithheld for tax · May 25, 2026653$1,478.6954,677
Goeckeler DavidDirector,Officerwithheld for tax · May 25, 20261,569$1,478.69509,903
Shek BernardOfficerwithheld for tax · May 25, 2026211$1,478.6932,832
Ilkbahar AlperOfficerwithheld for tax · May 21, 2026319$1,542.2455,330

Corporate actions

exchange records

No corporate action on record for SNDK yet.

Price history

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

SNDK is +13.2% over 20 sessions against the S&P 500's +0.1%, 26% below its 52-week high, realised volatility 74% 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 $SNDK %S&P 500 %Difference pp
120 sessionssince Apr 9$851.55▲ +100%▲ +12%+92
60 sessionssince Jul 7$1,617.75▲ +7.6%▲ +2.0%+5.5
20 sessionssince Sep 1$1,536.87▲ +13%▲ +0.11%+13
5 sessionssince Sep 23$1,816.55▼ −4.2%▼ −0.67%−3.5
1 sessionsince Sep 29$1,729.68▲ +0.59%▼ −0.21%+0.80
Averages of the closeclose against each average
5-session average
$1,742.79close −0.17% from it
20-session average
$1,693.49close +2.7% from it
50-session average
$1,533.71close +13% from it
Range and volumetrue range over 14 sessions · high to low over 20 · volume against the 20-session average
Average true range, 14
$985.6% of the close
Average day's range, 20
$915.2% of the close
Volume against 20 sessions
0.62×6.05M vs 9.43M average
Volatility and co-movement with S&P 500annualised from daily returns
Realised volatility, 20
74%≈ ±4.7% a session · moved more than that on 5 of 20
Realised volatility, 60
110%≈ ±7.2% a session · moved more than that on 17 of 60
Beta to S&P 500, 60
4.12moved with S&P 500 on 31 of 60 sessions
Up and down sessionscloses above and below the previous close
Last 20 sessions
10 up · 10 downof 20
Last 60 sessions
31 up · 29 downof 60
Best session, 250
▲ +26%Jul 30
Worst session, 250
▼ −14%Jul 28

Sandisk Corporation Common Stock is held by

4 headlines on SNDK

latest Oct 1, 2026 · links go to the publisher
Had You Bought This Vanguard ETF at the Start of January, You'd be Obliterating the S&P 500 in 2026The Motley FoolSandisk Bets on AI and Enterprise SSDs: Can It Outpace MU & STX?Zacks Investment ResearchMicron's Guidance Will Be the Whole Memory Market's AnswerZacks Investment Research3 Reasons Why Micron and Sandisk Investors Can Ignore What History Says Will HappenThe Motley Fool

Short-sale volume

25 sessions · to Sep 30, 2026

Short sales were 49% of reported volume on Sep 30, 2026, against 55% over the last 25 sessions.

Last 10 sessionsshare of the day's reported volume
SNDK daily short-sale volume
SessionShort volumeReported volumeShort share
Sep 30, 20261.47M2.98M49.3%
Sep 29, 20261.91M3.21M59.6%
Sep 28, 20262.04M3.44M59.4%
Sep 25, 20262.41M3.98M60.6%
Sep 24, 20262.41M4.17M57.7%
Sep 23, 20262.32M3.85M60.3%
Sep 22, 20263.64M6.4M56.9%
Sep 21, 20262.64M4.97M53.1%
Sep 18, 20264M6.55M61.0%
Sep 17, 20262.46M4.2M58.6%

Filings

SEC EDGAR · newest first
SNDK SEC filings
FiledFormReport date
Sep 21, 20264Sep 17, 2026
Sep 21, 20264Sep 17, 2026
Sep 21, 20264Sep 17, 2026
Sep 21, 20264Sep 17, 2026
Sep 21, 20264Sep 17, 2026
Sep 17, 2026144—
Sep 16, 20268-KSep 10, 2026
Sep 16, 20264Sep 15, 2026
Sep 16, 20264Sep 14, 2026
Sep 15, 2026144—
Sep 14, 2026144—
Sep 11, 20268-KSep 9, 2026
Sep 8, 2026144—
Sep 8, 20264Sep 3, 2026
Sep 8, 20264Sep 3, 2026
Sep 8, 20264Sep 3, 2026
Sep 8, 20264Sep 3, 2026
Sep 8, 20264Sep 3, 2026
Sep 8, 20264Sep 3, 2026
Sep 3, 2026144—
Sep 2, 20264Sep 1, 2026
Aug 27, 20264Aug 25, 2026
Aug 27, 20264Aug 25, 2026
Aug 27, 20264Aug 25, 2026
Aug 24, 20264Aug 20, 2026

About Sandisk Corporation Common Stock

SEC and exchange records
Company
Sandisk Corporation Common Stock
Exchange
XNAS
SEC CIK
2023554
Sessions on record
131
Price source
End of day · delayed
Computed
2 Oct, 02:30 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.