Protalix BioTherapeutics (DE) (PLX) Options Chain

NYSE: PLXHealth CareBiotechnology: Biological Products (No Diagnostic Substances)USD

2.78+0.08 (+2.96%)

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

Expiration date

Expiration: Nov 20, 2026
Days to expiration: 41
Share price: $2.78
Put/call ratio (OI): 0.30
Put/call ratio (volume): 0.87
ATM implied volatility: 116.4%
Expected move: ±$1.08
Open interest (C / P): 2.71K / 810

PLX options summary

The PLX options chain for the November 20, 2026 expiration lists 7 call and 4 put contracts, with 41 days until expiration. Open interest stands at 2,712 calls and 810 puts, a put/call ratio of 0.30, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $2.50 strike is 116.4%, which implies the market expects a move of about ±$1.08 (39.0%) in Protalix BioTherapeutics (DE) stock by expiration.

The most open interest sits at the $5.00 call (1.29K contracts) and the $2.00 put (705 contracts).

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

PLX options chain · November 20, 2026

PLX 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
6	3	812.5%	2.06	1.60	2.60	0.50	0.00	0.50	0.25	690.6%	—	3
0	2	—	1.41	0.00	0.00	1.00	—	—	—	—	—	—
31	2	276.6%	1.42	0.55	1.55	1.50	—	—	—	—	—	—
133	1	223.4%	0.87	0.15	1.15	2.00	0.05	0.30	0.20	148.4%	15	705
1,198	10	66.4%	0.35	0.25	0.40	2.50	0.15	0.75	0.20	166.4%	5	102
PLX $2.78
1,290	1	104.7%	0.02	0.00	0.05	5.00	2.60	3.60	2.91	373.4%	—	0
54	4	154.7%	0.05	0.00	0.05	7.50	—	—	—	—	—	—

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 PLX put/call ratio?

For the November 20, 2026 expiration, the PLX put/call ratio based on open interest is 0.30 (810 puts vs 2,712 calls), and 0.87 based on today's volume. A ratio above 1 means more puts than calls.

What is PLX's implied volatility?

At-the-money implied volatility for PLX options expiring November 20, 2026 is about 116.4%, an annualized estimate of how much the market expects Protalix BioTherapeutics (DE) stock to move.

How many PLX option expiration dates are there?

PLX has 4 listed expiration dates, from Oct 16, 2026 to May 21, 2027.

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.