Yes bid / ask
27¢ / 32¢
spread 5¢
24h volume
133
17.1k lifetime
Open interest
6,225
top of book 15 × 16
Closes
in 282mo
Jan 1, 2050 · 4:59 AM UTC
YES price Close per candle with bid/ask band; volume below. Times in UTC.
20¢ 25¢ 30¢ 35¢ 40¢ vol Oct 29 Nov 5 Resolution rules Verbatim from the venue. The analyst must quote these, never paraphrase.
If a human lands on Mars before California starts its high speed rail service for the public before Jan 1, 2050, then the market resolves to Yes.
Raw payload Exactly what the API returned for this market.
Show JSON market 39 can_close_early true
close_time 2050-01-01T04:59:00Z
created_time 2025-06-27T16:39:16.626772Z
early_close_condition This market will close and expire early if the event occurs.
Order book Top of book, both sides expressed as YES prices.
Yes ask (no bid) Size Yes
ask 743 75¢ ask 570 74¢ ask 227 67¢ ask 15 66¢ ask 1 50¢ ask 2.81 40¢ ask 563 33¢ ask 16 32¢ spread 5¢ mid 30¢
bid 15 27¢ bid 615 26¢ bid 10 25¢ bid 278 24¢ bid 738 23¢ bid 27 18¢ bid 2 15¢ bid 50 13¢ Yes bid (no ask) Size Yes
opens Jun 27, 2025 · 8:45 PM UTC closes Jan 1, 2050 · 4:59 AM UTC · may close early expires Jan 1, 2050 · 3:00 PM UTC category Science and Technology event independent outcomes Recent trades Most recent first. Price is the YES side.
Time Yes No Size Taker 4h ago 26¢ 74¢ 122 no 4h ago 27¢ 73¢ 1 no 4h ago 28¢ 72¢ 5 no 4h ago 28¢ 72¢ 5 no 10d ago 31¢ 69¢ 5 yes 10d ago 33¢ 67¢ 1.32 yes 10d ago 32¢ 68¢ 1 yes 10d ago 28¢ 72¢ 202 no 10d ago 29¢ 71¢ 5.27 no 10d ago 29¢ 71¢ 1 no 10d ago 29¢ 71¢ 1.05 no 12d ago 31¢ 69¢ 1.41 no 17d ago 30¢ 70¢ 2 no 17d ago 30¢ 70¢ 0.73 no 18d ago 30¢ 70¢ 3 no 18d ago 35¢ 65¢ 3.19 yes 18d ago 35¢ 65¢ 2.27 yes 19d ago 35¢ 65¢ 2.73 yes 27d ago 34¢ 66¢ 0.25 yes 27d ago 34¢ 66¢ 2.18 yes 27d ago 31¢ 69¢ 10 yes 27d ago 33¢ 67¢ 0.34 yes 27d ago 30¢ 70¢ 5 yes 27d ago 30¢ 70¢ 4 yes 27d ago 34¢ 66¢ 5.02 yes
event_ticker
KXMARSVRAIL-50
expected_expiration_time 2050-01-01T15:00:00Z
expiration_time 2050-01-08T15:00:00Z
latest_expiration_time 2050-01-08T15:00:00Z
notional_value_dollars 1.0000
open_time 2025-06-27T20:45:00Z
previous_price_dollars 0.3300
previous_yes_ask_dollars 0.3300
previous_yes_bid_dollars 0.2700
price_level_structure linear_cent
price_ranges 1 [0] 3 end 1.0000
start 0.0000
step 0.0100
rules_primary If a human lands on Mars before California starts its high speed rail service for the public before Jan 1, 2050, then the market resolves to Yes.
settlement_bounds_type default
settlement_timer_seconds 1800
title Will a human land on Mars before California starts high-speed rail?
updated_time 2026-10-25T18:19:12.117885Z