Verbatim from the venue. The analyst must quote these, never paraphrase.
If Billie Eilish is the a headliner at Boston Calling Music Festival 2027, then the market resolves to Yes.
To fulfill the Payout Criterion, the specified person must actually appear and carry out the specified role at the event. Being listed in the official lineup without actually performing does not qualify. Joint performances where the person shares the role with another performer do count. The performance qualifies even if delayed, shortened, or modified in format. Pre-recorded content does not qualify unless explicitly designated by organizers as fulfilling the role. Rumored or unofficial announcements, canceled appearances, and performances in different roles than specified do not satisfy the criterion.
opens
Aug 19 · 12:10 AM UTC
closes
Dec 31, 2027 · 4:59 AM UTC · may close early
expires
Jan 1, 2028 · 4:59 AM UTC
Recent trades
Most recent first. Price is the YES side.
Time
Yes
No
Size
Taker
1h ago
10¢
90¢
379
yes
Raw payload
Exactly what the API returned for this market.
Show JSON
market40
can_close_earlytrue
close_time2027-12-31T04:59:00Z
created_time2026-08-18T23:49:48.338216Z
early_close_conditionThis market will close and expire early if the specified performance occurs.
Order book
Top of book, both sides expressed as YES prices.
Order book unavailable.
1h ago
10¢
90¢
222
yes
16h ago
13¢
87¢
1
no
16h ago
13¢
87¢
50
no
16h ago
13¢
87¢
500
no
16h ago
13¢
87¢
50
no
event_ticker
KXHEADLINE-BOS27DEC31
exchange_index0
expected_expiration_time2028-01-01T04:59:00Z
expiration_time2028-12-30T15:00:00Z
expiration_value
last_price_dollars0.1000
latest_expiration_time2028-12-30T15:00:00Z
liquidity_dollars0.0000
market_typebinary
no_ask_dollars0.9100
no_bid_dollars0.9000
no_sub_titleBillie Eilish
notional_value_dollars1.0000
occurrence_datetime2028-01-01T04:59:00Z
open_interest_fp601.00
open_time2026-08-19T00:10:00Z
previous_price_dollars0.0000
previous_yes_ask_dollars0.1400
previous_yes_bid_dollars0.1300
price_level_structurelinear_cent
price_ranges1
[0]3
end1.0000
start0.0000
step0.0100
result
rules_primaryIf Billie Eilish is the a headliner at Boston Calling Music Festival 2027, then the market resolves to Yes.
rules_secondaryTo fulfill the Payout Criterion, the specified person must actually appear and carry out the specified role at the event. Being listed in the official lineup without actually performing does not qualify. Joint performances where the person shares the role with another performer do count. The performance qualifies even if delayed, shortened, or modified in format. Pre-recorded content does not qualify unless explicitly designated by organizers as fulfilling the role. Rumored or unofficial announcements, canceled appearances, and performances in different roles than specified do not satisfy the criterion.
settlement_timer_seconds1800
statusactive
tickerKXHEADLINE-BOS27DEC31-BIL
titleWill Billie Eilish be a headliner at Boston Calling Music Festival 2027?