One Stop Systems (OSS) Options Chain

NASDAQ: OSSTechnologyComputer ManufacturingUSD

7.74+0.09 (+1.18%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Expiration date

Expiration: Nov 20, 2026
Days to expiration: 40
Share price: $7.74
Put/call ratio (OI): 0.04
Put/call ratio (volume): 0.08
ATM implied volatility: 84.3%
Expected move: ±$2.16
Open interest (C / P): 18.35K / 810

OSS options summary

The OSS options chain for the November 20, 2026 expiration lists 12 call and 8 put contracts, with 40 days until expiration. Open interest stands at 18,348 calls and 810 puts, a put/call ratio of 0.04, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $7.50 strike is 84.3%, which implies the market expects a move of about ±$2.16 (27.9%) in One Stop Systems stock by expiration.

The most open interest sits at the $12.50 call (8.55K contracts) and the $7.50 put (341 contracts).

Summary generated from market data by MetaCap's automated system. Methodology

OSS options chain · November 20, 2026

OSS calls and puts by strike price. Shaded cells are in the money.
Calls							Puts
OI	Vol	IV	Last	Bid	Ask	Strike	Bid	Ask	Last	IV	Vol	OI
24	20	369.1%	6.50	4.70	5.70	2.50	—	—	—	—	—	—
84	20	64.1%	5.10	2.30	3.20	5.00	0.00	0.30	0.15	116.0%	1	84
294	111	87.3%	1.10	0.80	1.20	7.50	0.65	0.75	0.74	81.3%	22	341
OSS $7.74
7,278	28	89.3%	0.35	0.20	0.35	10.00	2.25	2.85	2.53	91.0%	5	307
8,552	7	98.4%	0.09	0.05	0.15	12.50	4.40	5.40	4.89	107.0%	1	76
875	11	108.6%	0.06	0.00	0.10	15.00	6.80	7.90	5.41	121.9%	5	0
237	41	137.5%	0.03	0.00	0.15	17.50	9.30	10.40	7.94	142.2%	5	0
599	250	169.1%	0.05	0.00	0.25	20.00	11.80	12.90	11.39	159.0%	1	0
221	1	190.6%	0.05	0.00	0.30	22.50	7.60	9.40	13.72	—	1	2
108	30	169.5%	0.07	0.00	0.10	25.00	—	—	—	—	—	—
61	10	225.8%	0.08	0.00	0.30	30.00	—	—	—	—	—	—
15	5	243.8%	0.04	0.00	0.30	35.00	—	—	—	—	—	—

In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.

Frequently asked questions

What is the OSS put/call ratio?

For the November 20, 2026 expiration, the OSS put/call ratio based on open interest is 0.04 (810 puts vs 18,348 calls), and 0.08 based on today's volume. A ratio above 1 means more puts than calls.

What is OSS's implied volatility?

At-the-money implied volatility for OSS options expiring November 20, 2026 is about 84.3%, an annualized estimate of how much the market expects One Stop Systems stock to move.

How many OSS option expiration dates are there?

OSS has 8 listed expiration dates, from Oct 16, 2026 to Jan 19, 2029.

What does "in the money" mean?

A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.