RESEARCH / OPTIONS
Options intelligence US markets

DIOD

Diodes Incorporated

Options session13 Oct 2026190 stored contracts

Checking for a newer reading. Your saved analysis remains available below and will update automatically.

Activity balance

Call-heavy

Options balance and the saved weekly stock trend agree. Weekly price context: 2026-10-09.

Since 12 Oct 2026
Options balance+66.0 points
Stock reference+0.1%
Priced move-6.3 pp
Stock reference
90.72USD
Put / call volume
0.34
Volume / open interest
0.03ร—
Reference IV
55.6%Annualised
Priced move
ยฑ0.1%To 16 Oct 2026
Current session dateOptions dated 13 Oct 2026
Collected 14 Oct, 08:08 BST

The shape of the options market

Read the chain at a glance.

Explore a scenario โ†—
Where trading is concentrated65%

of reported contract volume sits at the 20 Nov 26 expiry. A concentrated expiry deserves a closer look at event dates.

Near-term versus later volatility+8.8 pts

Near-money quoted volatility for 20 Nov 26 compared with 19 Mar 27. Higher near-term pricing can reflect event uncertainty; it does not identify the cause.

Quotes available for analysis57%

108 of 190 unexpired retained contracts have positive, ordered quotes with a spread no wider than half their midpoint. This is a quote check, not a promise of execution.

Price ร— expiry

How much movement is priced?

Each line shows the quoted move around the same stock reference, through that expiry.

Wider lines mean a larger priced move, not greater confidence. Each expiry has its own time horizon. No probability is assigned to these ranges.

Strike ร— expiry

Where are positions concentrated?

Darker cells mark more reported contracts. Select a cell, or use the arrow keys, to explore its value.

Up to 10 expiries and 16 displayed strikes, selected from the retained chain. Blank cells mean no observation; they are not zero. Large positions can be hedges or parts of spreads.

A closer look at sensitivity

Gamma, mapped.

Find the strikes and expiries where option sensitivity is concentrated.

Stock reference 90.72Dated 13 Oct 2026 ยท Sensitivity scenario

Calls are positive and puts negative in this comparison. These signs do not identify who holds the options.

Price changes the picture

What if the stock moves?

Recalculate sensitivity at different stock prices, holding volatility and time fixed.

The expiry clock

Where does sensitivity expire?

Combined call and put sensitivity by expiry. Larger bars mark more of the measured exposure.

Dated sensitivities for the first 12 available expiries, not a forecast of how they decay. Positions and prices can change before expiry.

How to read the map ยท coverage and assumptions

Colour shows size and side

In โ€œCalls โˆ’ putsโ€, green means the measured call sensitivity is larger; rose means the put sensitivity is larger. Combined sensitivity adds both sides. Long calls and long puts both have positive gamma.

These figures do not reveal dealer inventory, buying or selling, a price magnet, or a guaranteed support or resistance level.

A dated, standard-contract estimate

Dollar sensitivity = gamma ร— open interest ร— 100 shares ร— stock priceยฒ ร— 1%. Reported gamma is used when available; otherwise a European model uses checked quoted volatility with zero rate and dividends. Known non-standard contracts and same-day expiries are excluded. Unspecified contract sizes assume 100 shares.

Open interest and quotes can have different update times. Blank cells are unavailable, not zero.

Volatility, activity and trading costs

Three more ways to read the chain.

Same saved observation ยท original values retained
Volatility by strike & expiry

Where is uncertainty priced higher?

Annualised quoted volatility. Colour compares the available contracts; it does not show the chance of a move.

Activity versus existing positions

Does trading focus match open interest?

Each expiryโ€™s share of reported volume and open interest. Compare the two bars, then check the counts.

The cost between bid and ask

How wide are the quotes?

Median spread as a percentage of the midpoint, including wide quotes. Lower means less distance between bid and ask.

Inside the chain

Where activity sits

All strikes โ†’

Open interest by strike

Nearest expiry ยท puts to the left, calls to the right. Both sides use the same scale.

Calls versus puts

Share of volume and open interest in the stored chain.

Volume by expiry

Which dates account for the trading activity.

Concentrations are reference levels, not established support or resistance.

Through 16 Oct 2026

Move priced by options

ยฑ0.1%

USD ยท Usable near-money quotes support an IV estimate; a two-sided straddle is unavailable. This estimates move size, not direction or a guaranteed trading range.

How volatility is priced

Annualised implied volatility

Volatility across expiries

Near-money IV for each available expiry.

Volatility across strikes

Call and put IV at the nearest expiry. Gaps are not interpolated.

Before reading a signal

Can the quotes support the analysis?

Quote coverage by expiry

Checked quotes versus other retained contracts. Missing, crossed, zero-bid and widely spread quotes are excluded from priced scenarios.

Turn a reading into questions

Three paths to watch.

Research scenarios ยท no trade instruction

The reading strengthens

Price and activity agree

  • Price holds or improves while call-side concentration remains elevated.
  • The current chain read already agrees with the stored weekly trend context.
Explore a directional spread โ†’

Price stays near its level

Time becomes more important

Compare the cost of waiting with the move already reflected in premiums. A quiet stock can still have expensive options.

Explore a range scenario โ†’

The reading weakens

Check what stops agreeing

  • Price weakens while call pressure fades or reverses toward puts.
Explore protection โ†’

Explore the possibilities

One view. Every trade-off.

Interactive playbooks

Choose an outlook, then move the stock price. The chart shows what you pay, where you break even, and what you can gain or lose.

Costs & model assumptions

One strategy unit. Standard 100-share contracts. Stock strategies include 100 shares at the reference price. Fees cover entry only; taxes and exercise costs are excluded.

Expiry profit or loss follows the entered legs. Earlier values use a European option model with constant volatility and the stated rate and dividend yield. US stock options can be exercised early; assignment, changing volatility and execution prices can change actual results.

Inside the position

Edit strikes and premiums to test your own assumptions

Contract activity

Most active contracts

All contracts โ†’
ContractSideExpiryStrikeVolume โ†“ Open interest IV Bid Ask
DIOD261120C00110000Call20 Nov 26110.0011 30 71.7% 1.90 3.40
DIOD261120C00125000Call20 Nov 26125.0010 22 35.6% 0.00 1.45
DIOD261120C00100000Call20 Nov 26100.0010 11 67.8% 2.65 6.50
DIOD261120P00095000Put20 Nov 2695.0010 4 73.7% 9.40 12.30
DIOD270319C00130000Call19 Mar 27130.008 1 62.9% 4.00 6.00
DIOD261016C00090000Call16 Oct 2690.003 43 77.6% 0.95 4.90
DIOD261120P00090000Put20 Nov 2690.003 12 73.7% 6.30 9.60
DIOD261016C00085000Call16 Oct 2685.003 9 1.5% 4.40 6.80
DIOD261218P00075000Put18 Dec 2675.003 6 69.8% 2.65 4.80
DIOD261120C00085000Call20 Nov 2685.003 3 67.8% 9.20 13.00

Volume and open interest are contract counts. IV is annualised. A dash means the value was not supplied; zero is a reported value.

Options balance over time

Session history โ†’

Saved pressure readings

Dated readings using the same calculation version. Positive is call-heavy; negative is put-heavy.

Gamma sensitivity Modelled scenario

Sensitivity by strike

Estimated delta change for a 1% stock move, expressed in dollars.

Scenario proxy = gamma ร— open interest ร— 100 shares ร— spotยฒ ร— 1%. Calls are positive and puts negative by convention. Missing Greeks use a Black-Scholes estimate from stored IV with zero rate and dividend assumptions. Open interest does not reveal who is long or short, so this is not observed dealer positioning or a forecast.

A reading needs context

What has changed over time?

Volatility through saved sessions

Annualised reference IV. The available strikes and nearest expiry may change between readings; this is not a constant-maturity series.

Activity relative to outstanding positions

Session volume divided by open interest. A rising ratio means more turnover relative to outstanding contracts, not necessarily new positions.

Outcome record Completed observations only

Stock-price direction through expiry, using the first available weekly close on or just after expiry. These are not option-trade returns.

Record Followed direction Always up Always down 95% interval
Earlier saved readings Too few independent outcomes to establish an edge.2 / 2100%0%34โ€“100%

Earlier saved readings are reviewed retrospectively, separately from readings recorded in advance. Overlapping periods are excluded. The comparison uses the same stocks and dates; costs and option execution are not tested.

Read the picture

Options, in plain sight.

Select a topic to see what matters
01 Price is only part of the story

A call can lose value even when the stock rises. The rise may be too small, time may run out, or implied volatility may fall. Use the lab to hold price steady and change days or volatility.

Price movement+Time remaining+Volatilityโ†’Option value
02 Volume is activity, not intent

Volume counts contracts traded during a session. Every transaction has a buyer and a seller. Call-heavy activity alone does not tell us who initiated the trade or whether it was part of a hedge.

Buyerโ‡„One contract tradedโ‡„Seller
03 Open interest is an outstanding position

Open interest counts contracts still outstanding, usually reported after clearing. A busy session does not necessarily create new positions. A large concentration at a strike is a place to investigate, not a guaranteed support or resistance level.

04 A priced move has no direction

A near-money call and put can describe the cost of exposure to a move in either direction. The displayed range is a pricing reference. It is neither a price target nor a fixed probability interval.

Lower referenceโ†Stock priceโ†’Upper reference
05 A high IV needs a comparison

Implied volatility describes the movement reflected in option prices, expressed as an annualised percentage. Compare the same stock across expiries, strikes and dated history. A high value alone does not prove an option is expensive.

06 The spread is part of the cost

The bid is the quoted selling price; the ask is the quoted buying price. Their difference matters, especially on a position with several legs. A midpoint is an estimate, not an assured fill. Saved-quote playbooks buy at the ask and sell at the bid.

Bid ยท sellโ† spread โ†’Ask ยท buy

Learn more: OIC: understanding the Greeks โ†— ยท OIC: strategy reference โ†—

Options volume and open interest describe activity. They do not identify buyers, sellers or whether positions were opened or closed. Prices and readings are dated; they are not live quotes.

Evidence context