Rio Tinto Plc (RIO) Options Chain

NYSE: RIOBasic MaterialsMetal MiningUSD

94.78+1.44 (+1.54%)

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

Expiration date

Expiration: Mar 19, 2027
Days to expiration: 159
Share price: $94.78
Put/call ratio (OI): 0.90
Put/call ratio (volume): 1.16
ATM implied volatility: 40.0%
Expected move: ±$25.03
Open interest (C / P): 3.64K / 3.27K

RIO options summary

The RIO options chain for the March 19, 2027 expiration lists 29 call and 23 put contracts, with 159 days until expiration. Open interest stands at 3,641 calls and 3,272 puts, a put/call ratio of 0.90, which is fairly balanced between calls and puts. At-the-money implied volatility near the $95.00 strike is 40.0%, which implies the market expects a move of about ±$25.03 (26.4%) in Rio Tinto Plc stock by expiration.

The most open interest sits at the $145.00 call (576 contracts) and the $47.50 put (841 contracts).

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

RIO options chain · March 19, 2027

RIO 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
—	—	—	—	—	—	42.50	0.00	0.65	0.30	65.0%	102	109
—	—	—	—	—	—	45.00	0.05	0.70	0.35	62.4%	2	14
—	—	—	—	—	—	47.50	0.10	0.75	0.20	59.7%	31	841
1	1	65.6%	56.06	43.70	47.70	50.00	0.05	0.55	0.15	52.3%	2	83
0	2	—	43.61	0.00	0.00	55.00	0.05	0.70	0.40	53.8%	79	163
3	2	26.2%	41.00	30.70	34.80	60.00	0.00	1.70	0.60	58.7%	2	197
16	1	56.8%	30.14	29.30	32.20	65.00	0.45	1.05	0.75	44.1%	2	18
0	1	—	41.15	0.00	0.00	70.00	1.00	1.40	1.16	40.5%	1	230
8	1	52.9%	21.74	20.20	24.20	75.00	0.90	1.90	1.90	37.3%	1	87
0	—	—	23.98	0.00	0.00	77.50	1.50	2.35	2.54	36.6%	1	58
19	2	47.8%	16.70	15.90	19.90	80.00	1.65	2.90	3.00	36.0%	4	102
8	1	39.4%	24.50	13.80	16.60	82.50	2.25	4.40	3.77	39.8%	1	354
0	1	—	19.83	0.00	0.00	85.00	1.85	5.10	4.30	38.8%	5	161
23	1	43.6%	12.80	10.70	14.50	87.50	2.75	7.00	5.10	42.7%	10	75
198	5	42.5%	10.34	8.60	12.90	90.00	3.80	7.60	6.25	40.3%	1	210
39	2	41.4%	10.20	7.20	11.40	92.50	4.90	9.20	7.60	41.8%	15	172
RIO $94.78
186	4	40.0%	6.90	5.80	9.90	95.00	6.10	10.10	8.90	40.0%	16	167
106	11	39.9%	6.20	4.50	8.80	97.50	7.30	11.50	9.00	39.8%	7	146
533	15	39.4%	5.20	3.50	7.70	100.00	8.70	13.00	11.10	39.7%	1	54
270	7	31.7%	3.68	3.80	4.20	105.00	12.60	16.40	10.00	40.0%	10	19
555	3	31.7%	2.55	2.60	3.00	110.00	17.60	18.80	18.61	34.4%	7	11
166	3	32.5%	1.88	1.85	2.25	115.00	20.50	23.00	16.00	35.3%	10	0
270	1	32.3%	1.52	1.05	1.55	120.00	23.30	27.50	21.50	36.8%	1	1
76	2	38.5%	1.15	0.50	1.95	125.00	—	—	—	—	—	—
58	22	39.9%	0.87	0.15	1.65	130.00	—	—	—	—	—	—
11	4	36.8%	0.55	0.30	0.90	135.00	—	—	—	—	—	—
23	4	39.0%	0.40	0.00	0.85	140.00	—	—	—	—	—	—
576	1	38.0%	1.11	0.15	0.55	145.00	—	—	—	—	—	—
8	2	54.1%	0.95	0.65	2.00	150.00	—	—	—	—	—	—
61	5	41.0%	0.20	0.00	0.45	155.00	—	—	—	—	—	—
367	134	45.3%	0.05	0.05	0.60	160.00	—	—	—	—	—	—
60	31	52.4%	0.05	0.00	1.00	165.00	—	—	—	—	—	—

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 RIO put/call ratio?

For the March 19, 2027 expiration, the RIO put/call ratio based on open interest is 0.90 (3,272 puts vs 3,641 calls), and 1.16 based on today's volume. A ratio above 1 means more puts than calls.

What is RIO's implied volatility?

At-the-money implied volatility for RIO options expiring March 19, 2027 is about 40.0%, an annualized estimate of how much the market expects Rio Tinto Plc stock to move.

How many RIO option expiration dates are there?

RIO has 10 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.