10 Day Snapshot for ARM

Data as of Oct 21, 2026

Ten trading days of price, volume, volatility, and open-interest history. The highest value in each row is green, the lowest red.

DATA IS DELAYED — showing Oct 21, 2026. Subscribe to get the latest end-of-day data.

Last

203.36

Change

+21.87

Open

191.83

181.49

High

207.44

Low

188.43

Bid

Ask

Volume

6,690,893

Trades

Dividend

Yield

Ex-Div

Split Date

Impl Vol

76.5%

Hist Vol

80.9%

Opt Volume

67,981

Open Int

927,105

10 Day Snapshot	10-08	10-09	10-12	10-13	10-14	10-15	10-16	10-19	10-20	10-21
Stock Price	275.29	266.28	255.24	255.39	238.01	244.79	227.80	228.05	221.06	226.59
Price Change	-19.08	-9.01	-11.04	0.15	-17.38	6.78	-16.99	0.25	-6.99	5.53
Stock Volume	6.06M	4.23M	3.56M	6.74M	6.55M	6.51M	4.74M	3.86M	5.07M	3.22M
Historical Volatility	0.779	0.779	0.774	0.767	0.770	0.769	0.773	0.772	0.772	0.772
Implied Volatility	0.650	0.587	0.653	0.659	0.705	0.689	0.702	0.728	0.747	0.746
Call IVol	0.666	0.610	0.657	0.669	0.728	0.685	0.718	0.761	0.762	0.747
Put IVol	0.632	0.575	0.642	0.644	0.693	0.699	0.696	0.716	0.739	0.735
Option Volume	105.05K	76.40K	68.19K	132.29K	73.34K	72.30K	58.27K	36.90K	54.87K	51.39K
Call Volume	58.33K	40.97K	33.01K	86.81K	33.19K	42.27K	29.61K	21.80K	24.59K	30.19K
Put Volume	46.72K	35.43K	35.18K	45.48K	40.15K	30.03K	28.66K	15.10K	30.27K	21.20K
Open Interest	946.76K	934.41K	956.19K	977.23K	1.01M	1.02M	891.28K	763.90K	777.58K	794.69K
Call Open Interest	459.80K	443.62K	454.60K	469.52K	486.62K	495.88K	418.14K	336.99K	346.02K	354.25K
Put Open Interest	486.96K	490.79K	501.59K	507.71K	521.99K	520.58K	473.14K	426.90K	431.57K	440.45K
Put/Call Ratio	1.06	1.11	1.10	1.08	1.07	1.05	1.13	1.27	1.25	1.24
Call/Put IVol Ratio	1.055	1.061	1.025	1.038	1.051	0.980	1.031	1.063	1.030	1.016
Strike Peg (11-20)	263.35	263.39	263.42	262.91	261.23	260.40	260.04	258.20	257.49	254.04
Strike Peg (12-18)	190.95	191.63	191.86	191.85	191.83	192.20	192.29	192.33	191.77	191.61