UK options trading: a neutral course in pounds and pence

The learning path

The first three tracks build on each other; the two UK tracks can be read at any point. Each level page ends with a ten-question self-check, not a requirement.

New to options altogether? Options in one screen, further down this page, gives the four positions and the words in three paragraphs, and options for beginners opens with five points to hold on to before anything else.

Can I trade options in the UK?

Yes, through a firm that offers listed options, though none of the large UK investment platforms checked does (the platforms checked); the firms that do are compared on the broker page. Before it allows options, an FCA-authorised firm runs the appropriateness test (COBS 10A). Under the rules a failed test brings a warning, not a ban, and what happens next is each firm's own policy (how the test works). The account is usually an ordinary taxable one, since no ISA can hold an option, and a US option also needs a W-8BEN. Options on UK shares and on the FTSE 100 mostly trade on ICE Futures Europe, which took over LIFFE's equity derivatives on 17 November 2014 (ICE). Eurex in Frankfurt lists sterling options on a number of UK shares as well: its BP option is 1,000 shares, settled by delivering the shares. The London Stock Exchange lists no options (its asset classes, checked 10 October 2026).

Options in an ISA?

No. HMRC's rules for ISA managers leave "futures or share options" out of what a stocks and shares ISA can hold, Junior and Lifetime ISAs included, and a call written against shares held in an ISA cannot sit inside it either. What an ISA can hold is a fund that writes options inside itself, such as a UCITS covered-call ETF. Nor do the big SIPP platforms deal in options; only a handful of specialist SIPPs accept them (SIPPs). The wrappers page has the detail.

Share options from an employer?

Not covered here. This library is about options bought and sold on an exchange; EMI, CSOP and Sharesave options follow the employment-income rules instead. The glossary's employee share options entry names the GOV.UK and HMRC guidance that covers them.

Which page answers my question?

The questions readers most often arrive with, and the one page that answers each.

The UK market map: what a UK investor can trade

Eight contracts, from ICE and Cboe specifications checked 26 September 2026 and Eurex's checked 10 October 2026.

The 26 strategies, in course order

Each page carries the number shown here. The figures are its worked example for one contract, at fixed past dates, worked from the assumptions on that page and checked before each update: an illustration, not a price to trade.

Tools: build, price and check in pounds

Five tools on the pricing model behind the worked examples, so any figure can be reproduced and changed. Each is an illustration under stated assumptions and knows nothing of a reader's circumstances.

A five-question self-check

Not scored and not a gate: each answer names the page that teaches the point.

1. A BP October 560 call is quoted at 12.00p on the ICE standard contract. What does one contract cost before commission?

   Answer

   £120.00: 12.00p a share on 1,000 shares. A 100-share mini at the same quote would cost £12.00, but BP has no mini on ICE. See contract sizes.

2. The same call has a delta of 0.34. Is that a 34% chance of it finishing in the money?

   Answer

   No. On the same model the probability of BP finishing above 560p is 30.3%. Delta measures how the premium moves with the share; for a call on this model it is always higher than the probability of finishing in the money. See delta is not a probability.

3. BP's December 500/580 bull call spread is bought for a net 35.00p on one ICE contract. What is the most it can lose, and the most it can make, at expiry?

   Answer

   £350.00 and £450.00 before commission: the debit is 35.00p on 1,000 shares, and the 80p width less the debit is 45p. With £1.40 each time a leg is traded, the bull call spread page shows £352.80 and £444.40. Both limits hold at expiry; before then the written call can be assigned early, most likely ahead of an ex-dividend date. See defined risk.

4. What limits the loss on a call written with no shares held?

   Answer

   Nothing in the structure. The loss grows with the share price, and the broker's margin requirement grows with it, so a margin call can arrive long before expiry. See uncovered margin.

5. A put is written in March 2027 and lapses in April 2027. Which tax year holds the gain?

   Answer

   2026/27, the year of the grant: writing the option was the disposal, and the lapse adds nothing. A buy-back in April would instead reduce that 2026/27 gain. See across 5 April.

Questions 1 and 2 belong to the Start here track, 3 to Level 2, 4 to Level 3 and 5 to the UK tax track.

Options in one screen

Enough to read the table and the tools above. The mechanics are on options for beginners; what happens to a position that is not closed is on assignment and expiry.

The buyer of an option pays a premium for the right, but not the obligation, to buy (a call) or sell (a put) the underlying at the strike on or before expiry. The seller, or writer, takes the premium and the matching obligation. Every structure in the table combines four positions: a bought call or put, whose worst case is the premium, and a written call or put, whose worst case depends on what covers it: the strike less the premium for a put, and no limit at all for a call written without the shares.

A premium is intrinsic value, what exercising now would be worth, plus time value for the time and volatility still to come. A written stock option that finishes in the money is normally exercised against its writer: on a standard ICE contract 1,000 shares change hands, and whoever buys them pays 0.5% stamp duty on the strike. Of the five inputs that set a premium (price, strike, time, volatility and the interest rate), time and volatility move while a position is held; the next section is about them.

The Greeks in one screen

How an option's value moves when one input changes, per contract and in pounds. The full treatment is on Greeks, pricing and put-call parity; where implied volatility sits in its range, and what move it prices, on implied volatility.

The running example is BP's October 560 call on the standard assumptions: the share at 530p, 60 days to expiry, implied volatility 26%, rate 3.75%, on Monday 17 August 2026 (BP is a model underlying, not a view on BP). For one 1,000-share contract the site's pricing model gives:

Delta (Δ)

0.34: the call moves like 340.5 shares, £3.40 for each 1p move in BP (units).

Gamma (Γ)

delta changes by 65.6 share-equivalents for a 10p move; gamma is largest at the money close to expiry.

Theta (Θ)

−£1.88 a calendar day with everything else unchanged, paid by the holder and collected by the writer.

Vega (ν)

£7.88 for each volatility point; a fall in implied volatility after results can outweigh a correct view on direction (IV crush).

Rho (ρ)

£2.77 per percentage point of interest rate: small over 60 days, larger on the LEAPS page.

UK tax, wrappers and access in one screen

Each point in brief, with the page that works it through.

Capital gains tax, and when an option is taxed

For an individual, dealing in options is normally investment, not a trade: HMRC says individuals are "unlikely to carry on a trade of dealing in options" (CG55402). In 2026/27 gains above the £3,000 annual exempt amount are taxed at 18% within the unused basic rate band and 24% above it (GOV.UK). One counting rule sets the number of computations:

• A written option is one disposal, dated at the grant (TCGA 1992 s144(1)). A buy-back adds its cost to that grant (s148); a lapse leaves it standing; physical assignment moves the premium into the share deal (s144(2)); cash settlement makes grant and settlement one transaction (s144A(2)).
• A bought option is one disposal when sold or when it lapses (s144(4)); exercised, its cost joins the shares (s144(3)).

So a closed vertical is two computations and a closed iron condor four. A written option's result stays in its grant year even if it is bought back after 5 April; a bought leg's loss after 5 April cannot be carried back. The tax worked examples take each case through in pounds, the SA108 page shows the boxes and the trading test, and the CGT calculator dates a year's events.

ISA, SIPP and general account

No ISA can hold an option, Junior and Lifetime ISAs included: qualifying shares exclude "futures or share options" (HMRC), though an option-income fund can be held. In practice the large SIPP platforms do not offer options (the platforms checked). HMRC's rules allow them (PTM121000), so a few specialist SIPPs list exchange-traded options as permitted investments, usually dealt through a broker the administrator approves. Punter Southall's 2025 list includes them (checked 9 October 2026), while both administrators Interactive Brokers lists exclude them (checked 26 September 2026). Detail: the wrappers page.

Dollars, brokers and permissions

A US option is taxed in pounds, each leg converted at the rate on its own date (CG78310); the US options page covers the W-8BEN, 871(m) and cut-offs in UK time. Most UK platforms offer no listed options, and the broker comparison lists the firms that do. An FCA-authorised firm runs the appropriateness test first (COBS 10A): a failed test brings a warning, not a ban. Portfolio margin, an optional IBKR upgrade from USD 110,000, is not what permits uncovered writing; the permission level is (accounts and permissions).

Position size

The worked examples set each position's loss against round-number lines drawn as a share of the account, such as 1% for speculative long premium and 2% for defined-risk spreads. They are the library's illustrative framework, not an industry standard; the sizing page shows every line in pounds and where each fails.

Every page in the options library

The 26 strategy pages are in the table above. These are the other 26, by track.