Last digit analysis on Deriv and what it really shows

Last digit analysis on Deriv means counting the final digit of each tick price and looking at how often each of the ten digits turns up. This post explains what the BancaBot digit analyzer measures, how to read the numbers on the card, and where a digit share stops being useful.

The short version: a digit share is a record of what has already happened over a fixed number of ticks. It is a measurement, not a forecast. Reading it well starts with knowing the difference.

What the analyzer counts

Every tick on a Deriv synthetic index arrives as a price with a set number of decimal places. The last digit of that price is the one digit contracts settle on. The analyzer takes a window of recent ticks, strips out that final digit, and counts how many times each digit from 0 to 9 appeared.

Ten counts, expressed as percentages, add up to 100. That is the digit share. Alongside it the analyzer shows which digit came up most, which came up least, the spread between the two, and how the price moved over the same window.

It also tracks the longest run of ticks in one direction inside the window, which is a separate thing from the digit share and answers a separate question.

What a live reading looks like

Here is a real window, taken from Deriv's live feed at 2026-09-23 19:41 UTC, covering the last 1000 ticks from 19:08 to 19:41 UTC on five synthetic indices.

Market	Most common digit	Least common digit	Spread	Longest run
Volatility 10	7 at 11.6%	3 at 8.3%	3.3 points	11 ticks
Volatility 25	1 at 11.2%	6 at 8.7%	2.5 points	11 ticks
Volatility 50	5 at 11.6%	8 at 8.7%	2.9 points	9 ticks
Volatility 75	8 at 11.3%	3 at 8.4%	2.9 points	10 ticks
Volatility 100	9 at 11.5%	0 at 9.3%	2.2 points	9 ticks

Notice how similar those columns are. Across five different markets the top digit sits near eleven and a half percent and the bottom digit sits somewhere under nine. Nothing in the table is dramatic. That is the normal state of a digit share over a thousand ticks.

What the spread number is for

The spread is the gap between the most common digit and the least common digit, in percentage points. On Volatility 100 in that window it was 2.2 points. On Volatility 10 it was 3.3 points.

The spread is a quick way to see how flat or how lumpy a window is. A flat window means no digit stood out much. A lumpier window means one digit ran ahead of the others over those ticks.

What the spread does not do is tell you the next tick. The digit that led in the last thousand ticks led in the past. The next tick is a new event, and the counter will update after it, not before it.

What a digit share does not tell you

This is the part that costs traders money, so it is worth being blunt about it.

• A low digit share does not mean a digit is due. There is no debt to be repaid by the next tick.
• A high digit share does not mean a digit is hot and will keep going. The count is backward looking.
• The window matters. Change the number of ticks and the leader can change with it. A digit that leads over a thousand ticks may sit in the middle over the last hundred.
• A share of 11.6% and a share of 8.3% are both close to a tenth of the window. Small gaps look bigger when you stare at a bar chart.
• The digit share says nothing about price direction. On Volatility 50 the price rose 0.448% in that window while digit 5 led the count. The two facts are unrelated.

The longest run figure sits in a different category. A run of 11 ticks in one direction on Volatility 10 and on Volatility 25 tells you something about how the price has been moving, which matters for rise and fall contracts. It has nothing to do with which digit shows up next.

How Digit Trader presents it

The Digit Trader screen reads the last digits of Deriv's synthetic indices and shows one pick for the next tick, with every card that led to it. The cards are the working: the digit counts, the spread, the recent movement, the run length. The pick is a summary of those cards, not a promise about what the market will do.

Showing the cards is the point. If the pick rests on a two point spread in a flat window, the trader can see that and decide it is thin. If the trader disagrees with the read, they do not have to take it. The decision stays with the person, and trading loses money for many people, including people who read the cards carefully.

How to use a digit reading sensibly

Treat the analyzer as a measuring instrument. Ask what the window is, how flat the spread is, and whether the market you are looking at is the one you actually want to trade. Then decide on your own stake and your own limits before anything is placed.

A demo account is the sensible place to do this. You sign in with your own Deriv account through Deriv's OAuth screen, the permission asked for is trading only, and BancaBot cannot withdraw or move money and never sees a password. Real and demo accounts both work, and the analyzer itself is free to use.

If you want the longer explanation of how the counts are built and what each card on the screen means, read the Deriv analyzer tool guide before you place anything on a live account.