Last updated: 8 October 2026. Every screenshot below was recorded on 8 October 2026 on an IQ Option Practice account registered in Brazil, on EUR/USD 5-minute candles; the Chart analysis picture in Step 1 was recorded on 5 October 2026. We placed no real-money trade. The settings come from the platform’s dialog. The tested box shows what the two signals did on EUR/USD candles recorded between 29 September and 5 October 2026. No candle size and no expiry is prescribed, so those are ours; the result says nothing about what will happen next.
The Stochastic Oscillator shows where the latest close lies inside the highest-to-lowest range of the last candles, on a scale from 0 to 100, as two lines: %K and %D, the average of %K. IQ Option opens it with Period K 13, Smoothing 3 and Period D 3 and lines at 80 (overbought) and 20 (oversold); most traders change the 13 to 14. It gives two signals: when %K crosses %D inside the overbought zone it sells, and inside the oversold zone it buys; and a divergence between the price and the oscillator warns of a reversal. On 5-minute EUR/USD candles recorded between 29 September and 5 October 2026 the zone cross gave 106 signals and the 15-minute trades won 45.3% of the decided trades, below the 54.1% needed at an 85% payout; the divergence gave 26 signals and won 53.8%, within the margin of error of break-even.
Quick answer
- What it plots: two lines in a panel under the price chart, %K and %D, between 0 and 100, with level lines at 80 and 20.
- Settings on the platform: Period K 13, Smoothing 3, Period D 3, overbought 80, oversold 20. Most traders use Period K 14.
- Zone cross, sell: %K crosses below %D while both lines are over 80. Buy: %K crosses above %D while both are under 20.
- Divergence: the price makes a new low (or high) that the oscillator does not confirm; it is read as a likely reversal.
- Zones: %K was under 20 on 27% of the candles of our recording and over 80 on 19%.
- Tested: zone cross, 106 signals, 45.3% of the decided trades won; divergence, 26 signals, 53.8% (15-minute trades). Break-even is 54.1% at an 85% payout, and a few days of one pair prove nothing.
How do you add the Stochastic Oscillator on IQ Option?
Set the chart
Choose the asset, the chart type and the candle size first: the indicator is calculated from the candles on the chart. The examples in this guide use 5-minute candles on EUR/USD. These steps use the web traderoom on a Practice balance, and the numbers in each screenshot match the numbers in the text. If you do not have an account yet, see how to register.
Step 1: Open Chart analysis
Click the indicators button (1), the wave icon in the chart toolbar at the bottom left of the chart. The Chart analysis panel opens with the tabs Indicators, Templates, Widgets and Scripts. Stay on Indicators.
Step 2: Find the Stochastic Oscillator
Type “Stochastic” in the Search for indicators box (1) and click Stochastic Oscillator (2), the entry in the Popular list. The search also lists other indicators under Momentum; choose the one called Stochastic Oscillator, not the Stochastic RSI.
Step 3: Check the settings
The dialog opens on the Set up & apply tab, on Basic settings, with Period K 13 (1), Smoothing 3 (2), Period D 3 (3), Overbought 80 (4) and Oversold 20 (5). Many traders change the 13 to 14; our examples keep the platform’s 13. Click Apply (6).
Step 4: Use 5-minute candles
Click the candle time period button (1) in the toolbar at the left of the chart; it shows the current period, 5m in the picture. In the menu that opens, choose 5 minutes (2). No candle size is prescribed.
Step 5: Read the panel
The Stochastic panel sits under the price chart. Its title (1) reads Stoch (13, 3, 3). The two lines (2) are %K, in cyan, and %D, in red-orange, drawn between the green line at 80 and the red line at 20; the scale at the right edge gives 100, 80, 50 and 20.
How is the Stochastic Oscillator calculated?
For each candle the platform looks at the highest high and the lowest low of the last K candles (13 by default) and places the close inside that range: 0 if the close is at the lowest low, 100 at the highest high. That raw value is averaged over the Smoothing period (3) to give %K, and %D is the average of %K over the Period D (3). %K is the line that follows the price and %D is its moving average. On our chart %K is cyan and %D red-orange; the 80 and 20 lines are green and red.
IQ Option’s default of 13 is unusual: most traders use 14, the difference is small, and any change in parameters should be checked on historical charts. A longer period makes the lines enter the zones later and less often. In our recording %K was under 20 on 349 of 1,306 five-minute candles (27%) and over 80 on 250 (19%).
What are the two signals?
There is an overbought/oversold use and a divergence use. Above 80 the market is called overbought and below 20 oversold. Written so that every condition is checked on closed candles:
| Signal | Usual rule | Our rule for the replay |
|---|---|---|
| Zone cross, sell | While above 80, %K cuts %D and moves under it | On the candle, %K crosses below %D and both lines are over 80 |
| Zone cross, buy | When below the oversold line, %K cuts %D and moves above it | On the candle, %K crosses above %D and both lines are under 20 |
| Bullish divergence | The price falls and the oscillator does not follow; a support or resistance break usually comes with it | Two pivot lows of %K under 20 with %K back over 20 between them, the second with a lower price low and a higher %K; Higher when %K rises back over 20 |
| Bearish divergence | The mirror | The mirror with 80: Lower |
No candle size, expiry or stop is prescribed; the limits are false signals in volatile markets, the need for practice and the need for other tools. We scored 5-minute candles with trades of 15 minutes and of 5 minutes.
Three signals of the recording, step by step
The first Higher zone cross, the first bullish divergence and the first Lower zone cross of the recording, in time order and not picked by outcome. All times are the platform clock, which is UTC minus three hours; the date is 29 September 2026. The platform draws each value of a panel line at the close of its candle, at the right edge of the candle, so the frames on the lines sit half a candle to the right of the candle centres.
Higher zone cross, 00:50
At the close of the candle before the signal %K stood at 1.11 and %D at 2.04, %K under %D. The signal candle (2) opened at 00:50 and closed at 00:55 at 1.136195. At that close %K was 1.11 and %D 0.97: %K had crossed above %D (1) with both lines far under the 20 line, so the rule says Higher. The cross is a hair’s breadth, 0.14 of a point, because the rule asks only that %K is above %D. A 15-minute trade ends at 01:10, when the candle (3) closes at 1.136235, 0.4 pip higher: it won. A 5-minute trade ended at 1.136095, 1 pip lower, and lost.
Bullish divergence, 02:05
The picture joins two stretches of the chart. The first low of %K under 20 came with the candle that closed at 00:45: %K 0.7 and a price low of 1.136255 (1 and 3). The second came with the candle that closed at 02:05: %K 12.4, higher than before, and a price low of 1.135945, lower than before (2 and 4). That is the divergence: the price made a lower low and %K a higher one. The signal candle opened at 02:05 and closed at 02:10, when %K rose back over 20, to 21.6 (5), so the rule says Higher at 1.136065. The 15-minute trade ended at 1.13601, half a pip lower, and lost.
Lower zone cross, 07:35
At the close of the candle before, %K was 83.54 and %D 79.46, %K over %D. The signal candle (2) opened at 07:35 and closed at 07:40 at 1.13411. At that close %K was 84.03 and %D 85.14: %K had crossed below %D (1) with both lines over the 80 line, so the rule says Lower. The price went the other way. A 15-minute trade ends at 07:55, when the candle (3) closes at 1.13467, 5.6 pips higher, and the Lower trade lost; the 5-minute trade, which ended at 1.134245, lost too.
The first bearish divergence of the recording came at 08:55 and is a weak one: %K made a lower high, 87.9 against 96.0, while the second price high, 1.13499, was only 0.3 pip over the first. %K fell back under 80 on the candle that closed at 09:00 and the Lower trade at 1.135195 lost (1.1355 after 15 minutes).
The Stochastic signals, tested
We scored the readings on the 1,334 five-minute candles of our recording, entering at the close of the signal candle. The box also shows period K 14, which most traders use, and the zone cross on 1-minute candles with a 5-minute trade.
Tested on IQ Option: Stochastic zone cross and divergence, EUR/USD candles of 29 September to 5 October 2026
| Asset and candles | EUR/USD binary (regular, not OTC): 1,334 five-minute candles (2026-09-29 01:55 to 2026-10-02 20:55 UTC and 2026-10-04 21:00 to 2026-10-05 17:00 UTC); 1,505 one-minute candles (2026-10-02 18:23 to 2026-10-02 20:59 UTC and 2026-10-04 21:01 to 2026-10-05 19:28 UTC). The candles were recorded from IQ Option’s Practice traderoom. The replay places no orders; it only scores the rule on those closed candles, at an 85% payout. |
|---|---|
| Rule tested | The two signals on closed candles, the option opening at the close of the signal candle: zone cross, Lower when %K crosses below %D with both lines over 80, Higher when %K crosses above %D with both under 20; divergence, two pivot lows (highs) of %K in the zone with %K back out of it between them, the second with a lower low (higher high) of the price and a higher low (lower high) of %K, entered when %K comes back out of the zone. The Stochastic is the platform’s own (highs and lows, 13, 3, 3, and 14 for the second reading). The box lists trades of 15 and of 5 minutes and the zone cross on 1-minute candles. |
| Signals | Stochastic (13,3,3) lines cross in the zones, 5-minute candles, 15-minute trade: 106 signals (60 Higher, 46 Lower) same, 5-minute trade: 106 signals (60 Higher, 46 Lower) same with period K 14, 15-minute trade: 106 signals (60 Higher, 46 Lower) Stochastic (13,3,3) divergence, 5-minute candles, 15-minute trade: 26 signals (18 Higher, 8 Lower) same, 5-minute trade: 26 signals (18 Higher, 8 Lower) same with period K 14, 15-minute trade: 27 signals (19 Higher, 8 Lower) Stochastic (13,3,3) lines cross in the zones, 1-minute candles, 5-minute trade: 114 signals (55 Higher, 59 Lower) |
| Outcomes | Stochastic (13,3,3) lines cross in the zones, 5-minute candles, 15-minute trade: 48 won, 58 lost, 0 tied; 45.3% of the 106 decided trades won; net −$0.16 per $1 staked at 85% (−$0.14 at 91%) same, 5-minute trade: 47 won, 59 lost, 0 tied; 44.3% of the 106 decided trades won; net −$0.18 per $1 staked at 85% (−$0.15 at 91%) same with period K 14, 15-minute trade: 49 won, 57 lost, 0 tied; 46.2% of the 106 decided trades won; net −$0.14 per $1 staked at 85% (−$0.12 at 91%) Stochastic (13,3,3) divergence, 5-minute candles, 15-minute trade: 14 won, 12 lost, 0 tied; 53.8% of the 26 decided trades won; net −$0.00 per $1 staked at 85% (+$0.03 at 91%) same, 5-minute trade: 15 won, 11 lost, 0 tied; 57.7% of the 26 decided trades won; net +$0.07 per $1 staked at 85% (+$0.10 at 91%) same with period K 14, 15-minute trade: 15 won, 12 lost, 0 tied; 55.6% of the 27 decided trades won; net +$0.03 per $1 staked at 85% (+$0.06 at 91%) Stochastic (13,3,3) lines cross in the zones, 1-minute candles, 5-minute trade: 51 won, 59 lost, 4 tied; 46.4% of the 110 decided trades won; net −$0.14 per $1 staked at 85% (−$0.11 at 91%) |
| Break-even | At an 85% payout a trade needs to win more than 54.1% of its decided trades to break even (1 ÷ 1.85); at 91%, more than 52.4% (1 ÷ 1.91). |
A replay is only a look back at candles recorded on the dates above: it placed no real orders, covers about four and a half days of one pair, and counts overlapping trades as if they were independent. A short test proves nothing about the future, and no profit and no win rate is promised here. IQ Option’s own blog on backtesting says that most strategies need dozens, and often hundreds, of trades before a result means anything.
- Zone cross, period K 13: 106 signals; 15-minute trades won 48 and lost 58 (45.3%), 5-minute trades 47 and 59 (44.3%). With period K 14: 49 and 57 (46.2%).
- Divergence, period K 13: 26 signals; 15-minute trades won 14 and lost 12 (53.8%), 5-minute trades 15 and 11 (57.7%). With period K 14: 27 signals, 15 and 12 (55.6%).
The zone cross lost in every variant, and the period of 14 did not change that. The divergence came out around the break-even rate, but with 26 signals the 95% interval runs from 35% to 71%, so it shows nothing yet. On 1-minute candles the zone cross won 46.4% of 110 decided trades.
Pros and Cons of the Stochastic Oscillator
| Pros | Cons |
|---|---|
| Two lines and two fixed levels make a clear picture of where the close sits in the recent range. | The lines were beyond a level on 46% of the candles, so the zones are visited often. |
| The divergence idea is independent of the settings. | Only 26 divergence signals in 4.5 days; the sample is small. |
| Default settings work at once. | The zone cross won 45.3% in our recording, under the 54.1% needed at an 85% payout. |
Common mistakes
- Calling the area above 80 oversold. Above 80 is overbought, below 20 oversold.
- Selling the first time the line reaches 80. The rule waits for %K to cut %D and move under it.
- Choosing the Stochastic RSI by mistake. It is a different indicator that sits next to it in the list.
- Changing the period without checking it on past charts. Any change should be checked.
- Using it alone. It is not recommended as a standalone tool.
Related guides
- RSI, Stochastic and EMA 200 and Double Stochastic
- Stochastic with support and resistance and Stochastic and Parabolic SAR
- Overbought and oversold markets
- All indicator guides and all strategy guides
Frequently Asked Questions
Q: What is the Stochastic Oscillator?
A: A momentum indicator that places the latest close inside the recent high-low range on a scale from 0 to 100. It draws two lines, %K and %D.
Q: What are the default Stochastic settings on IQ Option?
A: Period K 13, Smoothing 3, Period D 3, with the overbought line at 80 and the oversold line at 20.
Q: Is 13 or 14 the better period?
A: Most traders use 14. In our replay period K 14 did not change the picture: the zone cross won 46.2% against 45.3%.
Q: How do I trade the overbought and oversold areas?
A: The rule waits until %K crosses %D inside the zone: a cross below %D over 80 is a sell, a cross above %D under 20 is a buy.
Q: Does the Stochastic strategy win?
A: The zone cross lost in our replay (45.3% of 106 trades with 15-minute trades). The divergence won 53.8% of 26, which is too few trades to tell from break-even.
Q: Can I use the Stochastic alone?
A: It is not recommended alone; other technical analysis tools are used alongside.
