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TAIFEX Institutional Traders — Taiwan Futures & Options

Daily dealer, investment trust and foreign institutional positions across all 23 TAIFEX futures and 5 options contracts: long/short volume, net flow and open interest, plus the TAIEX options put/call ratio. Official Taiwan Futures Exchange data for positioning analysis and quant research.

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chris

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Record type

record_type

Required

INSTITUTIONAL_POSITION for the main report rows, PUT_CALL_RATIO for the optional daily TXO ratio rows.

Type:string

Example:INSTITUTIONAL_POSITION

Trading date

date

Required

Trading date in YYYY-MM-DD format.

Type:string

Example:2026-07-30

Contract code

contract_code

Required

Official TAIFEX product code, e.g. TXF (TAIEX futures) or TXO (TAIEX options).

Type:string

Example:TXF

Contract name

contract_name

Optional

Official Chinese product name as printed on the exchange report.

Type:string

Example:臺股期貨

Contract name (English)

contract_name_en

Optional

English product name.

Type:string

Example:TAIEX Futures

Contract type

contract_type

Required

FUTURES or OPTIONS.

Type:string

Example:FUTURES

Call / put

call_put

Optional

CALL or PUT for options rows; null for futures rows.

Type:string | null

Example:CALL

Institution

institution

Optional

DEALER (自營商), INVESTMENT_TRUST (投信) or FOREIGN (外資及陸資).

Type:string

Example:DEALER

Institution (Chinese)

institution_zh

Optional

Institution type as printed on the exchange report.

Type:string

Example:自營商

Is overseas index future

is_overseas_index

Optional

True for the six futures on foreign indices (TJF, SPF, UNF, UDF, SXF, F1F). TAIFEX excludes these from its own headline 三大法人 totals — filter them out to reproduce the official aggregate.

Type:boolean

Example:false

Buy volume

buy_volume

Optional

Contracts bought during the session (futures 多方交易口數 / options 買方交易口數).

Type:integer

Example:8948

Buy value (NT$ thousands)

buy_value_thousands

Optional

Notional value bought during the session, in NT$ thousands.

Type:integer

Example:72462872

Sell volume

sell_volume

Optional

Contracts sold during the session (futures 空方交易口數 / options 賣方交易口數).

Type:integer

Example:9565

Sell value (NT$ thousands)

sell_value_thousands

Optional

Notional value sold during the session, in NT$ thousands.

Type:integer

Example:77393618

Net volume

net_volume

Optional

Buy minus sell contracts traded — the daily flow signal.

Type:integer

Example:-617

Net value (NT$ thousands)

net_value_thousands

Optional

Net notional traded, in NT$ thousands.

Type:integer

Example:-4930746

Buy-side open interest

buy_open_interest

Optional

Contracts held long (futures) or as the option buyer (options) at the close.

Type:integer

Example:6991

Buy-side OI value (NT$ thousands)

buy_open_interest_value_thousands

Optional

Notional value of buy-side open interest, in NT$ thousands.

Type:integer

Example:56441635

Sell-side open interest

sell_open_interest

Optional

Contracts held short (futures) or written as the option seller (options) at the close.

Type:integer

Example:4995

Sell-side OI value (NT$ thousands)

sell_open_interest_value_thousands

Optional

Notional value of sell-side open interest, in NT$ thousands.

Type:integer

Example:40306880

Net open interest

net_open_interest

Optional

Buy-side minus sell-side open interest — the standing position carried overnight.

Type:integer

Example:1996

Net OI value (NT$ thousands)

net_open_interest_value_thousands

Optional

Notional value of the net position, in NT$ thousands.

Type:integer

Example:16134755

Net volume (market direction)

market_direction_net_volume

Optional

Bullish-positive net volume: same as net_volume for futures and calls, sign-flipped for puts (a put buyer is short the underlying). Safe to sum across contract types.

Type:integer

Example:-617

Net OI (market direction)

market_direction_net_open_interest

Optional

Bullish-positive net open interest: same as net_open_interest for futures and calls, sign-flipped for puts. Summing this over all option contracts reproduces the exchange's own aggregate long/short totals.

Type:integer

Example:1996

Put volume

put_volume

Optional

PUT_CALL_RATIO rows only: TXO put contracts traded.

Type:integer

Example:157159

Call volume

call_volume

Optional

PUT_CALL_RATIO rows only: TXO call contracts traded.

Type:integer

Example:169736

Put/call volume ratio (%)

put_call_volume_ratio_pct

Optional

PUT_CALL_RATIO rows only: put volume / call volume x 100.

Type:number | null

Example:92.59

Put open interest

put_open_interest

Optional

PUT_CALL_RATIO rows only: TXO put open interest.

Type:integer

Example:69875

Call open interest

call_open_interest

Optional

PUT_CALL_RATIO rows only: TXO call open interest.

Type:integer

Example:87971

Put/call OI ratio (%)

put_call_oi_ratio_pct

Optional

PUT_CALL_RATIO rows only: put OI / call OI x 100 — the classic contrarian sentiment gauge.

Type:number | null

Example:79.43

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