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ARM

Arm Holdings plc American Depositary Shares · XNAS · 131 sessions on record
$289.66▼ −4.01 · −1.4%from $293.67 the session before · Sep 30, 2026 close · end of day
Open
$294.00
High
$295.99
Low
$283.50
Day's range
$124.3% of the previous close
VWAP
$288.51close +0.40% from it
Volume, shares
4.17M0.72× the 20-session average
Traded, $
$1.20B
Trades
93.3K45 shares per trade
Previous close
$293.67−4.01 to the close
Market cap
—
Day range49% of the way up
$283.50$295.99
52-week range49% of the way up
$136.00 Mar 30$452.70 Jun 18

−36% from the high · +110% from the low

The desk read · Sep 30expiry Oct 16 · 16 days
balanced
options read
calls 48% · puts 52% of OI
1.08
puts per call, by OI
Oct 16 expiry 1.00
$282.50
max pain
−2.5% from the close
$350.00
most call OI
4.14K contracts · +21% from the close
▲ +2.9%
option OI on the day
+24.7K contracts · 876K open

Balanced into a 16-day expiry: 1.08 puts per call by open interest, option OI +2.9% on the day, the most call OI sits at $350.00, the most put OI at $100.00, max pain $282.50.

Options

Sep 30 open interest · 18 expiries listed

ARM options carry 876K contracts of open interest across 18 expiries, 13% of it in the Oct 16 contract, with 1.08 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 days45.4K+5.5K29K+2.33K0.648.5116
Oct 99 days14.8K+9637.19K+7540.482.5101
Oct 1616 days55.8K+2.26K56.1K+1511.0013110
Oct 2323 days2.72K+383.93K+541.450.7661
Oct 3030 days3.51K+2695.97K+4491.701.169
Nov 637 days714+711.39K+2311.950.2465
Nov 2051 days54.6K+2.69K41K+3.05K0.751178
Dec 1879 days59.8K+36684.2K+1.9K1.411685

76% of open interest sits beyond the Oct 16 contract · 110 strikes listed for it · 876K contracts open in all

Monthly contractOct 16 expiry · 16 days

The Oct 16 contract holds 55.8K calls and 56.1K puts, the most call OI at $350.00 and the most put OI at $100.00; max pain $282.50, −2.5% from the close.

Call OI, contracts
55.8K+2.26K on the day
Put OI, contracts
56.1K+151 on the day
Puts per call, by OI
1.00all expiries 1.08
Max pain
$282.50−2.5% from the close
Strikes listed
110for this expiry
Open interest by strike, contractstop three strikes each side
Calls
Strike
Puts
3.41K
$500.00
4.14K
$350.00
3.12K
$300.00
$270.00
3.14K
$200.00
5.86K
$100.00
6.22K
Open interest added on the day, contractsthree largest additions each side
Calls
Strike
Puts
+299
$630.00
+599
$600.00
+318
$310.00
$280.00
+144
$245.00
+72
$230.00
+106
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
ARM close over the last 126 sessions, with S&P 500 rebased to the first close143.86291.66439.46axis spans 205%S&P 500ARMApr 1Jul 2Sep 30126 sessions from Apr 1 to Sep 30; the price axis spans 205 percent.

Quarterly results

SEC filings

No results filed on record for ARM yet.

Fundamentals

arithmetic on filings and the close

No filing on record for ARM 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
192M+5.8% on Mar 2026 among managers filing both
Managers holding
903705 a quarter earlier
Largest holder
—Invesco Ltd.
Largest 10 holderspercent of shares outstanding · change in shares against the previous quarter
Largest 13F holders of ARM
ManagerSharesOf outstandingValueChange on quarter
Invesco Ltd.25.6M—$9.09B+19.7M
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main13M—$4.61B−5.74M
Capital World Investors8.66M—$3.07B—
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP8.19M—$2.90B+6.3M
FMR LLC8.13M—$2.88B+3.23M
GOLDMAN SACHS GROUP INC5.85M—$2.07B+2.59M
VAN ECK ASSOCIATES CORP5.2M—$1.84B—
Capital Research Global Investors4.8M—$1.70B−3.63M
MORGAN STANLEY4.32M—$1.53B−4.61M
Capital International Investors4.1M—$1.45B+1.77M
Insider tradesSEC Forms 3, 4 and 5 · the latest 10

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

ARM insider trades
InsiderTradeSharesPriceHeld after
Bartels Laura KathleenOfficersold · Jun 2, 202611,306$392.7012,135
Abbey WilliamOfficersold · Jun 1, 20263,922$415.5220,563
Abbey WilliamOfficersold · Jun 1, 20262,644$383.7324,485
Abbey WilliamOfficersold · May 28, 20264,200$343.8127,129
Abbey WilliamOfficersold · May 22, 20262,300$305.8231,329
Eaton Charlotte ClaireOfficersold · May 21, 20265,000$291.080
Eaton Charlotte ClaireOfficersold · May 21, 20262,805$288.105,000
Abbey WilliamOfficersold · May 21, 20264,655$287.0333,629
Child JasonOfficersold · May 20, 202631,920$226.54174,232
Eaton Charlotte ClaireOfficersold · May 20, 20263,100$252.2511,805

Corporate actions

exchange records

No corporate action on record for ARM yet.

Price history

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

ARM is +23.4% over 20 sessions against the S&P 500's +0.1%, 36% below its 52-week high, realised volatility 94% 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 $ARM %S&P 500 %Difference pp
120 sessionssince Apr 9$149.80▲ +93%▲ +12%+81
60 sessionssince Jul 7$300.41▼ −3.6%▲ +2.0%−5.6
20 sessionssince Sep 1$234.83▲ +23%▲ +0.11%+23
5 sessionssince Sep 23$332.56▼ −13%▼ −0.67%−12
1 sessionsince Sep 29$293.68▼ −1.4%▼ −0.21%−1.2
Averages of the closeclose against each average
5-session average
$296.66close −2.4% from it
20-session average
$275.58close +5.1% from it
50-session average
$265.12close +9.3% from it
Range and volumetrue range over 14 sessions · high to low over 20 · volume against the 20-session average
Average true range, 14
$217.2% of the close
Average day's range, 20
$165.4% of the close
Volume against 20 sessions
0.72×4.17M vs 5.82M average
Volatility and co-movement with S&P 500annualised from daily returns
Realised volatility, 20
94%≈ ±5.9% a session · moved more than that on 5 of 20
Realised volatility, 60
85%≈ ±5.4% a session · moved more than that on 17 of 60
Beta to S&P 500, 60
4.39moved with S&P 500 on 35 of 60 sessions
Up and down sessionscloses above and below the previous close
Last 20 sessions
14 up · 6 downof 20
Last 60 sessions
31 up · 29 downof 60
Best session, 250
▲ +17%Aug 4
Worst session, 250
▼ −13%Jun 5

Arm Holdings plc American Depositary Shares is held by

3 headlines on ARM

latest Sep 30, 2026 · links go to the publisher
ARM vs. APP: Which AI-Exposed Tech Stock to Consider Right Now?Zacks Investment ResearchArm vs. Marvell Technology: Which AI Chip Stock Is a Better Buy in 2026?The Motley FoolARM vs. Intel: What Revenue Growth Trends Reveal About These Artificial Intelligence CompaniesThe Motley Fool

Short-sale volume

25 sessions · to Sep 30, 2026

Short sales were 57% of reported volume on Sep 30, 2026, against 54% over the last 25 sessions.

Last 10 sessionsshare of the day's reported volume
ARM daily short-sale volume
SessionShort volumeReported volumeShort share
Sep 30, 2026995K1.76M56.5%
Sep 29, 20261.83M2.9M63.0%
Sep 28, 20262.52M4.19M60.1%
Sep 25, 20261.84M2.99M61.4%
Sep 24, 20262.71M4.38M61.8%
Sep 23, 20261.87M3.01M62.0%
Sep 22, 20262.02M3.23M62.4%
Sep 21, 20263.58M5.67M63.2%
Sep 18, 20261.36M2.09M65.3%
Sep 17, 20261.14M2.41M47.2%

Filings

SEC EDGAR · newest first
ARM SEC filings
FiledFormReport date
Sep 23, 20264Sep 21, 2026
Sep 21, 2026144—
Sep 18, 20266-KSep 18, 2026
Sep 16, 20264Sep 14, 2026
Sep 10, 20264Sep 9, 2026
Sep 10, 20266-KSep 10, 2026
Aug 31, 20264Aug 27, 2026
Aug 27, 2026144—
Aug 18, 20264Aug 17, 2026
Aug 11, 20264Aug 7, 2026
Aug 10, 20266-KAug 10, 2026
Jul 29, 20266-KJun 30, 2026
Jul 29, 20266-KJul 29, 2026
Jun 4, 20264Jun 2, 2026
Jun 3, 20264Jun 1, 2026
Jun 1, 20264May 28, 2026
May 26, 20264May 22, 2026
May 26, 2026SD—
May 26, 2026IRANNOTICE—
May 26, 202620-FMar 31, 2026
May 22, 20264May 21, 2026
May 22, 20264May 21, 2026
May 21, 20264May 19, 2026
May 21, 20264May 19, 2026
May 21, 20264May 20, 2026

About Arm Holdings plc American Depositary Shares

SEC and exchange records
Company
Arm Holdings plc American Depositary Shares
Exchange
XNAS
SEC CIK
1973239
Sessions on record
131
Price source
End of day · delayed
Computed
1 Oct, 11:23 pm 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.