05 Investigate movement
Answer four operational market questions with explicit ClickHouse SQL.
macOS terminal: Run workshop commands in Terminal using zsh or bash.
Starting point
The raw and one-minute tables contain current data.
Question 1 — What is the current probability?
SELECT
m.token_id,
m.question,
m.outcome,
round(argMax(t.midpoint, t.event_at) * 100, 2) AS probability_percent,
max(t.event_at) AS last_update
FROM polymarket.price_ticks AS t
INNER JOIN
(
SELECT token_id, question, outcome
FROM polymarket.markets FINAL
) AS m ON m.token_id = t.token_id
WHERE t.midpoint > 0
AND t.event_at >= now() - INTERVAL 30 MINUTE
GROUP BY m.token_id, m.question, m.outcome
ORDER BY m.question, m.outcome;The midpoint is an indicative probability from the best bid and ask, not a promise of a tradeable price.
Question 2 — Which outcome moved most?
WITH now() AS current_time
SELECT
m.token_id,
m.question,
m.outcome,
round(argMaxIf(t.midpoint, t.event_at, t.event_at > current_time - INTERVAL 1 MINUTE) * 100, 2) AS now_percent,
round(argMaxIf(t.midpoint, t.event_at, t.event_at <= current_time - INTERVAL 5 MINUTE) * 100, 2) AS five_minutes_ago_percent,
round(now_percent - five_minutes_ago_percent, 2) AS move_points
FROM polymarket.price_ticks AS t
INNER JOIN
(
SELECT token_id, question, outcome
FROM polymarket.markets FINAL
) AS m ON m.token_id = t.token_id
WHERE t.midpoint > 0
AND t.event_at >= current_time - INTERVAL 15 MINUTE
GROUP BY m.token_id, m.question, m.outcome
HAVING now_percent > 0 AND five_minutes_ago_percent > 0
ORDER BY abs(move_points) DESC;If this is empty, the feed has not accumulated five minutes. Continue with the next queries and return later.
Question 3 — Is the spread wide or the data stale?
SELECT
m.token_id,
m.question,
m.outcome,
round(argMax(t.best_bid, t.event_at) * 100, 2) AS bid_percent,
round(argMax(t.best_ask, t.event_at) * 100, 2) AS ask_percent,
round(ask_percent - bid_percent, 2) AS spread_points,
dateDiff('second', max(t.event_at), now()) AS age_seconds
FROM polymarket.price_ticks AS t
INNER JOIN
(
SELECT token_id, question, outcome
FROM polymarket.markets FINAL
) AS m ON m.token_id = t.token_id
WHERE t.best_bid > 0
AND t.best_ask > 0
AND t.event_at >= now() - INTERVAL 30 MINUTE
GROUP BY m.token_id, m.question, m.outcome
ORDER BY spread_points DESC;A move with a wide spread or old quote deserves less confidence than a fresh, tight market.
Question 4 — Did recent trade volume accelerate?
SELECT
condition_id,
token_id,
title,
outcome,
round(sumIf(price * size, event_at >= now() - INTERVAL 5 MINUTE), 2) AS current_5m_usd,
round(sumIf(
price * size,
event_at >= now() - INTERVAL 10 MINUTE
AND event_at < now() - INTERVAL 5 MINUTE
), 2) AS previous_5m_usd,
round(current_5m_usd / greatest(previous_5m_usd, 0.01), 2) AS velocity_ratio
FROM polymarket.trades_clean
WHERE event_at >= now() - INTERVAL 10 MINUTE
GROUP BY condition_id, token_id, title, outcome
ORDER BY current_5m_usd DESC;This is public matched volume represented as price * size; it is analysis, not a
recommendation.
Done when
At least the current probability, spread/freshness, and volume queries return without error. After five minutes, the movers query should also return rows.
Next: publish the Cloud dashboard.