Premium and discount: paying the right price

Half the range decides the price
Every range has a midpoint. Mark the high, mark the low, split the difference — that line is equilibrium. Above it is premium. Below it is discount. This isn't a Fibonacci trick or an indicator setting. It's arithmetic, and it tells you, before anything else, whether the price you're about to pay is cheap or expensive relative to the move that already happened.
I buy in discount. I sell in premium. That's the whole filter. If price is trading above equilibrium in a range I want to buy, I wait. Not because the setup looks wrong — because I'd be paying more than half the range for something I could get cheaper if I'm patient. The setup can be right and the price can still be wrong.
This removes a decision I don't want to make on the fly. You don't have to judge whether a pullback "looks like enough." You have a line. Price is on one side of it or the other. Everything downstream either agrees with your bias or fights it.
It also strips out the excuse-making. Without the line, every entry gets rationalized after the fact — "it was close enough to the low," "it still had room." With the line, there's no room to argue. Either the print happened below equilibrium or it didn't, and the trade either qualifies or it waits.
Pick the range that actually matters
The mistake is drawing premium and discount on any range you can find. Not every high-to-low swing deserves a midpoint. The range that matters is the leg that broke structure — the move that shifted the trend, cleared the prior swing point, and told you direction changed. That's your dealing range. High of that leg, low of that leg, split it.
Draw it on the wrong leg and the equilibrium line is meaningless. You'll get a number that has nothing to do with where the market is actually deciding to hold or reject. Draw it on the leg that broke structure and the midpoint lines up with where retracements stall, because that's the leg the rest of the move gets measured against.
On MNQ this changes daily. Some days the structural leg is the whole overnight range. Some days it's a single expansion candle inside the New York session. The chart tells you which leg it is. You don't get to pick the one that hands you the entry you already wanted.
There's also a nesting to this. A large structural leg on the daily chart has its own equilibrium, but inside that leg there are smaller legs that broke their own local structure, each with a midpoint of their own. I default to the range that matches the timeframe I'm actually trading. A day trade off the New York session gets measured against the session's structural leg, not the swing that's been building for two weeks.
Equilibrium-or-better survives the retrace
Here's the mechanical reason discount entries hold up: a retracement that only takes price back to premium hasn't actually retraced the move. It's given back less than half. That's a weak pullback, and weak pullbacks are exactly the ones that snap back and run without you if you were holding out for a deeper entry that never comes — or that stop you out if you paid premium expecting continuation.
An entry at or below equilibrium has room. If price wicks further into discount before turning, your stop is still logical, still sitting behind structure. An entry paid in premium during an uptrend has none of that room. You're already exposed to the same pullback you should have been buying.
Think about what a premium entry is actually betting on. It's betting the range extends past its own high without ever giving back the discount half at all. That happens, but it's the exception, not the plan. A discount entry doesn't need the exception. It just needs the range to do what ranges normally do — breathe, retrace, then continue.
Patience is the position
Most traders don't lose because they read direction wrong. They lose because they pay premium for a discount idea. The bias is right, the entry is early, and the range punishes them for skipping the wait. Equilibrium isn't a signal to enter — it's a gate. Price has to earn the right to be bought by trading into the cheap half of the range first. If it never gets there, there's no trade. That's not a missed opportunity. That's the filter doing its job.