ProKidney (PROK) Options Chain

NASDAQ: PROKHealth CareBiotechnology: Biological Products (No Diagnostic Substances)USD

1.74+0.08 (+4.82%)

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

Expiration date

Expiration: Jan 21, 2028
Days to expiration: 469
Share price: $1.74
Put/call ratio (OI): 0.08
Put/call ratio (volume): 0.23
ATM implied volatility: 147.7%
Expected move: ±$2.91
Open interest (C / P): 3.62K / 280

PROK options summary

The PROK options chain for the January 21, 2028 expiration lists 7 call and 6 put contracts, with 469 days until expiration. Open interest stands at 3,617 calls and 280 puts, a put/call ratio of 0.08, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $1.50 strike is 147.7%, which implies the market expects a move of about ±$2.91 (167.4%) in ProKidney stock by expiration.

The most open interest sits at the $4.00 call (2.52K contracts) and the $2.00 put (160 contracts).

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

PROK options chain · January 21, 2028

PROK 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
0	5	—	1.39	0.00	0.00	0.50	0.00	0.00	0.24	25.0%	2	0
497	100	130.1%	1.27	0.65	1.65	1.00	0.10	1.10	0.58	179.7%	—	15
0	1	—	0.75	0.00	0.00	1.50	0.35	1.35	0.72	147.7%	1	2
PROK $1.74
32	10	141.0%	0.60	0.45	1.45	2.00	0.80	1.80	1.00	156.3%	110	160
529	178	152.3%	0.70	0.40	1.35	3.00	—	—	—	—	—	—
2,517	200	113.7%	0.50	0.10	0.85	4.00	2.30	3.30	2.80	122.1%	—	100
42	6	134.0%	0.55	0.35	0.75	5.00	2.40	6.20	3.65	202.3%	4	3

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 PROK put/call ratio?

For the January 21, 2028 expiration, the PROK put/call ratio based on open interest is 0.08 (280 puts vs 3,617 calls), and 0.23 based on today's volume. A ratio above 1 means more puts than calls.

What is PROK's implied volatility?

At-the-money implied volatility for PROK options expiring January 21, 2028 is about 147.7%, an annualized estimate of how much the market expects ProKidney stock to move.

How many PROK option expiration dates are there?

PROK has 5 listed expiration dates, from Oct 16, 2026 to Jan 21, 2028.

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.