The Overnight High and Low: My First Levels Every Morning

Before I mark a single other level, before I check the news, before I even finish my coffee, I mark two lines on my chart.

The overnight high. The overnight low.

Everything else in my premarket prep hangs off those two lines. They are the first levels I draw and the last levels I would ever delete. If you want one upgrade to your overnight high low trading strategy that costs nothing and pays every single day, start here.

Why the overnight range punches above its weight

The overnight session, globex, runs roughly 6 PM to 9:30 AM Eastern on ES futures. It is thin. Fewer traders, less volume, wider swings on smaller orders.

Most people hear "thin" and think "irrelevant." They have it backwards.

Because the session is thin, the extremes it prints are emotional. A headline drops at 2 AM, algos react, stops get tripped with nobody on the other side to absorb them, and ES spikes to a high or low that would have taken real effort during regular hours.

Then the US wakes up. Billions of dollars of institutional flow walks in at 9:30 AM. And the first thing all that money sees is those overnight extremes sitting there like magnets.

Thin sessions build the cleanest levels. Clean levels attract the most orders. The most orders create the best trades.

That is why two lines drawn from a session most traders sleep through end up deciding so many opens.

Scenario one: we open inside the range

Most mornings, $SPY opens somewhere between the overnight high and the overnight low. Price is inside the range, and the range becomes the playing field.

My read. The edges of the range are the levels that matter. The overnight high is resistance. The overnight low is support. The first test of either edge usually holds, because the orders that built those extremes are still sitting there.

How I trade it. I do not chase the middle. I wait for price to push toward one edge and show me what it wants to do. If it stalls at the overnight high with weak momentum, I am looking for the fade back toward the middle of the range. If it slices through with conviction, the range is broken and I am looking at the next levels on my map.

The patience rule. The highest probability trade of this scenario is the first touch of an edge, not the third. By the third test, the orders are chewed through and the level is weak. First touch gets my attention. Third touch gets my skepticism.

This is range trading, but it is range trading with levels the entire institutional world is watching. That shared attention is what makes the edges hold.

My opening range playbook goes deeper on how I handle the first 30 minutes when we open inside a range like this.

Scenario two: we open outside the range

Some mornings $SPY gaps up over the overnight high or gaps down under the overnight low. Now the range is behind us, and the game changes completely.

My read. An open outside the range means the overnight extreme already failed. The question is whether the break is real or a head fake. More often than most traders expect, it is a head fake.

How I trade it. I watch for the sweep back inside. Price pokes above the overnight high, triggers the breakout buyers, then fails and drops back into the range. That failed breakout is one of the cleanest short setups in day trading. Same thing in reverse below the overnight low.

The trap to avoid. Do not chase the gap. The worst trade on an outside open is buying the top of the gap-up because it "looks strong." Strength at the open is the easiest thing in the world to fake. Let it prove itself or let it fail. Either way, you get a trade. Chasing gets you neither.

Gap days have their own personality, and I wrote a full gap days playbook for exactly these mornings.

Want to watch me trade this live? I call these setups out in real time every morning inside the free Bulls Corner Discord. Get in free here, just drop your email and you're inside.

The sweep of the overnight high or low

Now the part I care about most.

When price pushes through the overnight high or low and then snaps back, that is a Liquidity Sweep. Stops above the high get raided. Breakout traders get trapped. The weak hands donate their fuel, and the real move starts in the opposite direction.

This is my PSS Model doing what it does. Sweep the extreme, shift direction, break structure, enter the value zone. The overnight high and low are simply the cleanest extremes to sweep, because everyone can see them.

Overnight sweep, confirmed shift. Price pierces the overnight high, wicks back inside, and then closes back below the broken level with conviction. That is my signal that the sweep is real and the reversal has fuel.

No shift, no trade. If price pokes above the overnight high and just sits there, chopping sideways, there is no sweep. There is just a slow grind. I wait. The setup I want is violent and obvious, not vague and hopeful.

Some of my best trades of the year have been overnight level sweeps in the first hour. The levels are public, the stops are obvious, and the fuel is real. It is the market telling you exactly where the trap is, in advance, every single morning.

Mark them before anything else

Order of operations matters. Here is mine, and the overnight levels are step one.

Step one. Open ES. Mark the overnight high and low from the globex session. These go on the chart first.

Step two. Mark the prior day high and low. Then the obvious swing levels. Then the higher timeframe structure.

Step three. Translate the key levels to $SPY prices. Note where $SPY is set to open relative to the overnight range. Inside or outside decides my whole morning plan.

Step four. Build the trade plan around those levels, the same way I lay out in my premarket routine.

Two lines. Ten seconds to draw. They frame everything.

CME Group lists ES trading at nearly 23 hours a day, which is why the overnight session exists as a real market with real levels instead of just dead air between closes.

Two lines run my morning

The overnight high and low are not magic. They are just the most watched levels at the most important moment of the day.

Open inside the range, trade the edges. Open outside, watch for the sweep back in. Either way, you walked in with a plan while everyone else is still figuring out what happened overnight.

Draw the two lines. Every morning. Before anything else.

If you want to see this live instead of reading about it, I trade $SPY and $QQQ 0DTEs every morning and call every step out loud. The free Discord is where it happens, join free.

And if you want the whole thing, every setup, every alert, plus my full course: the 7-day free trial gets you inside Premium free for a week.

FAQ

What are the overnight high and low in trading?

The overnight high and low are the highest and lowest prices printed during the overnight globex session on futures, roughly 6 PM to 9:30 AM Eastern on ES. Because the session is thin, these extremes become key reference levels that attract heavy order flow at the US open.

How do you trade the overnight high and low?

If price opens inside the overnight range, I trade the edges, fading the first test of the high or low. If price opens outside the range, I watch for a sweep back inside, which is often a failed breakout and a high quality reversal setup.

Why do overnight levels matter more than regular levels?

They do not matter more in general, but they matter most at the open. Every institution walks in at 9:30 AM and sees the same two lines. That shared attention concentrates orders at those levels, which makes reactions there cleaner and more tradeable.

Should I mark overnight levels on $SPY or ES?

Mark them on ES futures, then translate to $SPY. $SPY does not trade overnight, so its chart cannot show you the true overnight extremes. ES trades nearly 24 hours and prints the real levels.

Risk note: everything on this blog is educational content from my own trading experience, not financial advice. Trading options involves substantial risk of loss.