Why Is the Options Price on Pluang Different From Other Platforms?

The options price on Pluang is different from other websites or platforms because Pluang displays the mid-price — the midpoint between the most recently executed bid and ask — rather than the last traded price. This mid-price refreshes approximately every 5 seconds, while many other platforms instead show the last traded price, a figure that only updates when a new trade actually executes and can sit unchanged for minutes on a thinly traded contract. Because these are two different calculation methods, not two different data sources, the numbers can diverge even though both ultimately trace back to the same underlying US options exchange where the contract is listed. Pluang's price is not delayed or independently set — it reflects the live bid-ask activity for that specific contract on the US exchange, updated on a fixed short interval rather than only when a trade occurs. The gap between the two figures tends to widen on contracts with wider bid-ask spreads or lower trading volume, and narrows again once trading activity picks up.

Two mechanics explain most of the difference you'll see between Pluang and another platform on the same options contract:

• Pricing method: Pluang calculates price as the mid-price of the executed bid and ask (bid + ask, divided by 2), not the last traded price. A platform using last traded price is reporting the price of the most recent completed trade, which may have happened several seconds — or, on illiquid contracts, several minutes — earlier.
• Refresh interval: Pluang updates this mid-price on a roughly 5-second cycle so the number you see reflects current market conditions rather than waiting for the next trade to occur.
• Source exchange: Both figures reference the same underlying US options exchange for that contract — Pluang is not pulling from a separate or delayed feed. The exchange and clearing infrastructure behind Pluang's US Stock Options are regulated in Indonesia by OJK, through PT PG Berjangka as the licensed Perantara Pedagang Derivatif Keuangan, with JFX and KBI as the exchange and clearing house.
• When the gap is largest: Expect the difference to be most visible on contracts with wide bid-ask spreads or low volume, since the last traded price can lag well behind current market conditions in those cases, while the mid-price keeps tracking the live quote.

None of this means one number is "wrong" — they're simply two accepted ways of representing an option's current price, and Pluang's methodology is disclosed here so the figure you see in the app isn't mistaken for a data error.

Related questions:

Q: What exactly is the "mid-price" Pluang uses for Options?
The mid-price is the midpoint between the current best bid (what buyers are willing to pay) and current best ask (what sellers are willing to accept), calculated as (bid + ask) ÷ 2. It's a live snapshot of where the market is pricing the contract right now, not a record of what the last completed trade happened to cost. Exchanges and brokers commonly use mid-price as a fair-value reference because it isn't skewed by a single stale or one-sided trade.

Q: How often does Pluang refresh the Options price shown in the app?
Pluang updates the displayed Options price approximately every 5 seconds. This fixed refresh cycle means the price you see is recalculated on a set schedule rather than only when a new trade executes on the exchange. Platforms that instead show the last traded price only update when an actual trade occurs, so during quiet periods their displayed number can stay frozen for longer than Pluang's mid-price, even though both are referencing the same contract.

Q: Does a price difference between Pluang and another platform mean the price is inaccurate?
No — a difference in the displayed number doesn't mean either price is inaccurate; it typically means the two platforms are using different pricing conventions on the same underlying contract. Pluang's mid-price and another platform's last traded price are both legitimate ways to represent an option's value, and small differences of this kind are expected and normal in options markets, especially outside the most actively traded strikes.

Q: Where does Pluang's Options price data actually come from?
Pluang's Options prices reference the underlying US options exchange where each contract is listed, since Options trading on Pluang is executed through licensed market infrastructure rather than an internally set price. The bid and ask used to calculate the mid-price reflect real, live quotes from that exchange for the specific contract, so the number in the app moves in line with actual US market activity rather than an independent Pluang-side estimate.