What Is Today's Change on Pluang Options?
Today's Change on Pluang options is the percentage change in a specific option contract's premium price compared to that contract's previous trading day closing price, shown next to each Call or Put listing on the options chain and trade page. It tracks movement in the option contract's own price, not the underlying stock or ETF's price, so the two figures are rarely identical even on the same trading day. A positive Today's Change means the premium has risen since the prior close; a negative figure means it has fallen. Because an option's premium reacts to several inputs at once — the underlying asset's price, implied volatility, and time decay — Today's Change on a contract is typically far more volatile in percentage terms than the underlying stock or ETF's own daily percentage change, even when both move in the same direction. Traders use it as a quick, at-a-glance signal of how a contract's price has moved for the day before opening the full options chain detail.
What drives Today's Change:
- Underlying price movement — the most direct driver; a rising underlying price typically pushes Call premiums up and Put premiums down, and vice versa, though not proportionally.
- Implied volatility (IV) — a jump in IV can push a premium up even if the underlying price barely moves, and a drop in IV can pull a premium down even on a flat or favorable underlying move.
- Time decay — premiums lose a small amount of extrinsic value simply from one trading day passing, which drags Today's Change down independent of price direction.
- Leverage effect — because premiums are a fraction of the underlying asset's price, the same dollar move in the underlying can represent a much larger percentage move in the premium.
Where to check it: Today's Change is displayed per contract on the options chain (per strike and expiry) and on the individual contract's trade page, alongside the current premium price — it is not a single figure for the underlying stock or ETF as a whole.
Related questions:
Q: How is Today's Change different from the underlying stock's daily change?
Today's Change measures the percentage move in the option contract's premium, while the underlying stock or ETF's daily change measures the percentage move in the stock's own price. The two are related but not equal — a premium's Today's Change is driven by the underlying move plus implied volatility and time decay combined, so it can point in the same direction as the stock but by a very different magnitude, or occasionally even move against a small underlying price change.
Q: Why can Today's Change on an option be much larger than the stock's own move?
Because an option premium is only a fraction of the underlying asset's price, the same absolute price move gets amplified into a much bigger percentage swing on the premium — this is the leverage effect built into options. A 1% move in the underlying stock can translate into a double-digit percentage move in Today's Change for a given contract, particularly for contracts with less intrinsic value.
Q: Where can I see Today's Change for a contract on Pluang?
Today's Change is shown directly on the options chain next to each Call and Put listing for a given underlying stock or ETF, and again on that specific contract's trade page alongside its current premium. Each strike price and expiry date has its own Today's Change figure, since every contract's premium moves independently — there is no single combined figure covering an entire options chain or underlying asset, so always check the individual contract before comparing.
Q: Does Today's Change reflect intrinsic value, time value, or both?
Today's Change reflects the combined move in a premium's intrinsic value and time value together, not either one in isolation. If the underlying price moves favorably, intrinsic value typically shifts the premium; independent of that, time decay and any change in implied volatility shift the time value portion. The single percentage shown is the net result of both effects on that trading day.