Prediction-Market Whale Alerts Explained | Zobet AI
A whale-order alert draws attention to unusually large activity. The useful next question is what the activity actually represents. Order size can make a market worth examining, but size alone does not explain the trader’s reasoning, reveal their other positions, or prove that an outcome is more likely. Treat the alert as an observation to investigate.
Identify whether it is an order or a trade
An order waiting for a match is different from a completed transaction. Kalshi describes its order book as resting orders with associated prices and quantities. Polymarket also distinguishes open orders from fills; an order can fill only partly, and its unfilled portion can be canceled.
Start by reading the event label in the alert. Does it describe displayed buying interest, displayed selling interest, or executed activity? If the message does not specify, keep that uncertainty in your notes. Do not silently turn a large resting order into a claim that somebody already bought.
Sources: Kalshi Help Center: The Orderbook; Polymarket Documentation: Prices and Orderbook.
Put the size in context
Ask what the size field measures. A contract count, purchase value, and potential payout are not interchangeable. Record the unit before comparing two alerts. Then consider the activity relative to the visible market, rather than using one dollar threshold as a universal definition of importance.
A large order could reflect a strong opinion, an adjustment to an existing position, or a broader strategy you cannot see. These are possible explanations, not conclusions about any particular trader. A useful interpretation states what was observed first and keeps guesses about motivation separate.
Hypothetical example: 10,000 contracts
Suppose a notification flags a resting bid for 10,000 YES contracts at 30 cents. This is an invented teaching example. Multiplying the displayed quantity by the bid gives $3,000 of proposed purchase value if all contracts filled at that price. It does not show that $3,000 has already changed hands.
You check again and the displayed quantity is 4,000. The smaller number alone does not establish what happened to the other 6,000 contracts. You would need additional order or trade information before describing them as filled. Your note can simply say that the displayed quantity changed.
Now imagine a separate alert reports a completed trade. That supports a different observation: execution occurred at the reported time and price. It still does not reveal the participant’s entire portfolio or tell you that copying the direction at a later price would produce the same result.
Review what changed around the activity
Open the underlying market and compare the alert time with the information you can independently verify. Was there a relevant announcement? Is the contract close to an important date? Did the current quotes change, or is the original observation now stale? Write down what you can confirm and leave the rest unresolved.
Also examine how much is available at the prices you are considering. Kalshi explains that a sufficiently large Quick Order can consume multiple price levels. Seeing another participant’s price does not establish the price you could obtain for your own quantity.
Sources: Kalshi Help Center: Quick Orders.
Keep the conclusion narrower than the evidence
A useful conclusion might be: large YES buying interest appeared, so I will review the contract and current market. A much stronger claim, such as someone knows the outcome, needs evidence that order size does not provide. Avoid describing anonymous activity as proof of insider knowledge.
Zobet’s whale-order information is one input alongside price comparisons, market movements, and event context. You choose what to research and whether to trade. An alert can improve your review process without every alert leading to an order.
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