Level 1 · Top-of-book
Level 1 typically provides the best available bid and ask prices, along with trade information. Spectrum works with Level 1 data, with top-of-book depth visibility.
StreetLight Spectrum
Free DOM & Order Flow
for NinjaTrader 8
Order Flow
Without
the Overhead.
StreetLight Spectrum is a free, read-only DOM (Depth of Market) and order-flow tool for NinjaTrader Desktop, built around one simple principle: show useful market information without making the experience unnecessarily complicated.
*Built for NinjaTrader Desktop
Two sides of the market.
Resting orders:
Orders waiting to buy or sell at different prices.
Executed trades:
Buying and selling activity that has actually taken place.
Spectrum brings both observations together, helping traders see how price responds.
Understand the ladder
Shown with optional Cassette-linked position visibility.
Why We Built Spectrum.
We built Spectrum around the information we use in our own trading: resting liquidity, executed buying and selling, volume, delta, and potential absorption.
Could we have added more features? Absolutely.
Spectrum isn’t intended to replace every advanced DOM on the market. We deliberately focused on the information we use, presented in a way that’s straightforward to understand.
Simplicity Wins.
Visibility,
not prediction.
Spectrum helps you observe market activity. It doesn’t tell you when to enter a trade, where to place a stop, or which direction the market will move.
These are observations you can consider alongside price action and your own trading approach.
A large bid
doesn’t guarantee support.
Positive delta
isn’t automatically a buy signal.
Potential absorption
doesn’t guarantee a reversal.
We demonstrate. We don’t dictate.
Understanding market data.
Spectrum works with the market data available through your NinjaTrader connection. The information you receive may vary depending on your broker, data provider, and market-data subscription.
Level 2 · Market depth
Level 2 provides additional visibility into resting buy and sell orders at multiple price levels.
These resting orders are displayed liquidity: orders currently visible in the order book, waiting to be matched with buyers or sellers.
For a more complete experience with Spectrum’s depth-of-market features, we recommend considering Level 2 access.
If you’re trading through a prop firm, check directly with your firm to understand which market-data level is included and whether additional depth is available. Before subscribing, confirm which exchanges and instruments are covered and what additional fees may apply.
The amount of market depth available depends on your connection, exchange, and subscription. Even with Level 2 access, you won’t necessarily see every order in the market, and displayed resting orders can change or disappear.
Free means free.
StreetLight Spectrum is free. All DOM and order-flow features are included.
| What you get | Spectrum Free | Spectrum + Cassette Deck |
|---|---|---|
| DOM & order-flow information | Included | Included |
| Account, position & P&L visibility | — | Included with Cassette Deck |
Already using Cassette Deck?
Spectrum can also display your account, position, and P&L information alongside the price ladder when used with StreetLight Cassette Deck.
That’s the only difference.
Same Spectrum. Same market information. Additional position visibility.
Cassette Deck is available separately for $89 USD, one-time purchase.
Explore Cassette DeckMarket-data subscriptions and exchange fees, where applicable, are separate.
Actual SIM workspace.
Learn it here.
Recognize it anywhere.
You don’t need to understand every number on the ladder before you begin.
- Watch the orders waiting at each price.
- Watch the trades actually executing at those prices.
- Observe how price responds.
As you become more comfortable, the other columns and summaries will begin to make sense.