How do I use Market Replay for learning?

In Nydar's Market Replay, rewind to a significant price move and watch how the order book changed in the lead-up. Look for patterns like walls being pulled, large aggressive orders, or absorption. Richard Wyckoff's tape-reading methodology (1931) established that volume precedes price -- and Nydar's 150-snapshot replay buffer lets you observe this principle directly across 15 depth levels per side. Professional traders study game film the same way athletes do, and Nydar's Replay is designed to build that pattern recognition without leaving the dashboard.

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Market Replay

Nydar's market replay scrubs through 150 order book snapshots with 15 depth levels and 10 recent trades per frame

Crypto OnlyThis widget requires a crypto trading pair (e.g., BTC/USDT)

Market Replay widget showing live order book with bid and ask levels, trade tape, and rewind controls for BTC/USDT

What Is Nydar's Market Replay Widget?

Nydar's Market Replay captures up to 150 order book snapshots -- each with 15 depth levels and 10 recent trades -- and lets you scrub through them on a timeline slider. When something interesting happens -- a flash crash, a sudden bid wall appearing, aggressive selling -- you can hit Rewind and scrub back through the last several minutes to see exactly how the order book evolved.

Professional traders study market microstructure the way athletes study game film. Nydar's Replay lets you do that in real time, without leaving the dashboard.

The practice of reviewing historical order flow has deep roots in trading methodology. Richard Wyckoff's "The Richard D. Wyckoff Method of Trading and Investing in Stocks" (1931) established that reading the tape -- studying the sequence of trades and order book changes -- reveals the intentions of large operators ("composite man") before price moves become obvious on charts. Wyckoff's core principle was that volume precedes price, and the order book is where volume originates. More recently, O'Hara (1995), in "Market Microstructure Theory" (Blackwell Publishers), demonstrated that informed traders leave detectable footprints in the order book -- patterns like systematic absorption at specific levels and aggressive order sequences that precede 60-80% of significant price moves in liquid markets. Nydar's 150-snapshot replay buffer is designed specifically to capture and review these patterns.

Nydar's Two Modes

Live Mode

Nydar's default view. Shows the current order book with bid/ask levels, spread, and the most recent trades. Nydar updates every two seconds. A green pulse indicator confirms Nydar's feed is active. Snapshots are automatically cached in the background.

Rewind / Scrub Mode

Click Nydar's Rewind button to freeze the live feed and enter scrub mode. A timeline slider appears showing Nydar's full cached history. Drag it to any point to see exactly what the order book and trade tape looked like at that moment. Nydar's footer shows how many seconds ago the snapshot was taken.

What Nydar's Market Replay Shows

Ask Levels (Red)

Nydar displays sell orders above the current price, with volume bars showing relative depth. The lowest ask is closest to the spread.

Bid Levels (Green)

Nydar shows buy orders below the current price. The highest bid is closest to the spread. Large bid walls in Nydar indicate potential support.

Spread

Nydar shows the gap between the best bid and best ask as a divider between the two sides. A widening spread during stable conditions often signals incoming volatility.

Trade Tape

Nydar's trade tape shows the most recent executed trades at the bottom, colour-coded by aggressor side. Green = buyer-initiated (market buy), red = seller-initiated (market sell). This is the ground truth — what actually traded vs what was merely posted.

When to Use Nydar's Rewind

Flash Crashes:After a sudden drop, use Nydar's rewind to see how bids were pulled before the move. Were sellers overwhelming, or did market makers simply step away?

Breakouts:After price breaks a key level, scrub back in Nydar to see how the ask wall was eaten through. Genuine breakouts show progressive absorption; fakeouts show the wall simply disappearing.

Missed Moves:Stepped away and price moved? Nydar's Replay lets you rewind to see the order flow that drove it. This is the fastest way to build pattern recognition.

Pro Tips

Nydar caches up to ~5 minutes of history automatically — no setup needed
Focus on what the order book looked like before the move, not during
Watch Nydar's spread during rewind — it often widens before big moves
Compare Nydar's trade tape direction vs the order book bias for confirmation
Use alongside Nydar's Footprint Chart for candle-level context while reviewing tick-level flow

Market Replay vs Other Nydar Widgets

Nydar offers several order flow analysis widgets. Here is how Market Replay compares:

Feature	Market Replay	Level 2	Order Book	Footprint Chart	Order Flow
Primary focus	Historical order book review	Live depth with ladder	Live bid/ask depth bars	Volume at price per candle	Aggressive buy/sell split
Rewind capability	150 snapshots (~5 min)	No (live only)	No (live only)	Historical candles	No (live only)
Depth levels	15 per side per snapshot	20+ per side	Full depth	Aggregated by candle	Trade-level
Trade tape	10 trades per snapshot	Live stream	Via imbalance ratio	Embedded in candle	Full tape
Best for	Post-mortem analysis	Live scalping decisions	Support/resistance ID	Volume profile analysis	Institutional flow detection
Combine with Replay?	--	Compare live vs replayed depth	Confirm walls from replay	Match candle volume to replay flow	Verify aggressor patterns