Photon Solana: how to trade SOL.

1. The three-part model

Every trade on Solana runs through the same three pieces, whether you use Photon Solana or any other interface:

• A pool holds two tokens and sets a price by their ratio. Liquidity in, spread out.
• A router figures out which pools give you the best net fill for your size, then builds the transaction.
• Your wallet signs it. Nothing moves without your key.

Photon Solana replaces the router with a faster one and the front end with a real terminal. The custody model is identical to every serious tool: none.

2. Slippage, without the math

Slippage is the difference between the price you see on the quote and the price your order actually fills at. Two causes, and they matter in different situations:

• Size relative to the pool. A pool has finite depth. If you buy more than the top of the book can absorb, each successive unit costs more. This is permanent price impact and no priority fee fixes it.
• Movement between quote and fill. On Solana that window is usually one block—under half a second. But on a volatile pair, half a second can move 0.3%.

Photon Solana’s quote shows both costs separately: price impact (your size vs. the pool) and the slippage allowance (how far the price may move before your tx rejects). A common beginner mistake is setting slippage to 10% “to be safe.” That doesn’t protect you—it lets a bad fill through. Set it as low as the pair tolerates.

3. How smart routing works

A token doesn’t have one price. It has a price per pool, and those diverge. On a normal day, SOL/USDC on Raydium and SOL/USDC on Orca differ by fractions of a basis point—but on a busy day, or for a thin pair, the spread can be meaningful.

Photon Sol’s router does three passes before you ever see a quote:

1. Enumerate. Pull reserves and order books from every live pool holding your pair.
2. Simulate. Compute the net output of each path, including each pool’s fee tier.
3. Split. Allocate your order across the top paths so the combined fill beats any single pool.

The result is shown as a route preview—the exact legs, in order—that you approve before signing. Three legs on the same pair is normal; the middle legs often hop through a stablecoin to get better depth.

4. Priority fees, explained

Solana orders transactions within a slot by how much priority fee each one pays per compute unit. In quiet periods, ~1,000 micro-lamports per CU lands you in the next slot. During congestion—big launches, network-wide mempool pressure—the price to get in climbs.

Photon Sol starts low and raises your bid automatically up to a cap you set in the terminal. The default cap is sensible for normal trading. You only need to touch it when the tape is moving fast and every slot is contested.

5. Security checklist

Most losses on Solana aren’t exploits—they’re decisions. A short list that covers the common ones:

• Verify the contract. Photon Solana’s router and fee vault addresses are published on the homepage and in the docs. If an interface shows a different router, you’re on a phishing site.
• Check liquidity, not just price. A token can pump on $8,000 of liquidity. Open the book and confirm the pair can absorb your size.
• Beware mint authority. If the token’s mint authority is still active, the deployer can print more supply. Most reputable projects freeze it.
• Sign what you see. Wallets show you the transaction. If the interface asks you to sign something it didn’t describe, don’t.
• Never paste a seed phrase. Not into a website, a support chat, or a “validator” tool. Real tools never ask.

6. Glossary

• LP (Liquidity Provider) — An account that deposits tokens into a pool and earns fees.
• Price impact — The permanent price movement caused by your order’s size against pool depth.
• Mempool — The pool of submitted, not-yet-confirmed transactions; the “next block’s rumor mill.”
• Priority fee — Extra fee that bids your transaction into an earlier position within a slot.
• Mint authority — The key allowed to create new supply of a token; should be frozen or revoked for most projects.
• Rug — When a deployer removes liquidity or mints supply to drain a pair’s value.
• Slot — Solana’s unit of time and ordering, roughly 400 ms of real time.

7. FAQ