Supply and Demand zones

Working good indi from bredin
Displays Supply and Demand zones more-or-less in accordance with Sam Seidens teachings.
You should only use the visibility inputs if you have II_SupDem loaded multiple times on a single chart and one of them has forced.tf set to 0
A weak zone "should" represent a rally-base-rally or drop-base-drop S/D zone
There are some styling issues with the HUD

Thanks levonisyas,

This is interesting indicator. By the way - is there some theory behid it? It may be good to read something just to understand how to use this indicator.

Well ... I found - this is Supply/Demand Basics webinar of Sam Seiden, Vice President of Education at Online Trading Academy - go to this link on fxstreet - this is 40 minutes webinar.

Some more :

An Introduction to supply and demand

Tutorial on Introduction to supply and demand for microeconomics, Principle of Economics, and good for GCSE revision.

This is very simple explanation - Supply and Demand

Supply / Demand and Odds Enhancers - Part 1: Foundation

Expert: Sam Seiden, Vice President of Education at Online Trading Academy

Summary:
During this session, Sam will share some important parts of his market timing supply and demand strategy and include some key odds enhancers that help determine where markets are going to change direction and where they are going to go.

Supply / Demand and Odds Enhancers - Part 2: Foundation

Expert: Sam Seiden, Vice President of Education at Online Trading Academy

Summary:
During this session, Sam continues his presentation by covering advanced Odds Enhancers that give you a significant edge.

Trading Supply & Demand

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What is a support?

A support level is a price level located below the current value of price, where there were previously more buyers than sellers (demand was previously more important than supply), and which sent the price upwards after preventing it from falling any lower. It is a level that the big players consider a good price to buy. A support level, as stated earlier, is represented by a horizontal line, which makes it simple enough for us to trade as there is nothing simpler than a horizontal line.

Investopedia explains "Support" : If the price of a stock falls towards a support level it is a test for the stock: the support will either be reconfirmed or wiped out. It will be reconfirmed if a lot of buyers move into the stock, causing it to rise and move away from the support level. It will be wiped out if buyers will not enter the stock and the stock falls below the support.

What is a resistance?

A resistance level is a price level located above the current value of price, where there were previously more sellers than buyers (supply was more important than demand), and which sent the price downwards after preventing it from raising higher. It is a level that institutions consider a good price to sell. A resistance level is also represented by a horizontal line.

What do support and resistance levels look like on a chart?

To sum-up, you can remember that support represents demand and resistance represents supply. Bulls (buyers) put buying pressure at support levels and bears (sellers) put selling pressure at resistance levels. To find your support and resistance levels, observe where price respectively stalled and started to raise or stalled and started to drop.
Is a line enough or should you rather consider a zone?

As supply and demand traders, we like to approach the support and resistance principle as zones/areas more than one unique line. But in the end, a zone is made of two lines, so let us say that we like to use two lines instead of one. This is because you will see that although price can respect a single line very nicely, it can also turn a bit above or a bit below the initial price line.

Investopedia explains "Zone of support": A price zone in which a stock finds support and begins to trade upward once again. In technical analysis, support occurs not at a finite point, but in a zone. The "density" of the zone of support (how far the price can move down through it) depends on the volume of trading as the price approaches and enters the zone. The higher the volume of trading in the zone of support, the higher the point at which actual support will most likely occur.

Investopedia explains "Zone of resistance": A price zone in which a stock finds resistance and begins to trade downward. In technical analysis, that support occurs not at a finite point, but in a zone. The "density" of the zone of resistance (how far up the price can move through it), depends on the volume of trading as the price approaches and enters the zone. The higher the volume of trading in the zone of resistance, the lower the point at which the actual resistance will most likely occur.

Why does it work?

Support and resistance levels are the simplest yet the most effective tools to trade profitably. But why? Well, there are two answers to that. The first one is mechanical and results from the human psyche. Greed, to be more precise. Let us put it this way: if you go to the store at 8h00 in the morning to buy a diamond, and you see the price is 1000 usd. You tell yourself, well, I do not know if I am ready to pay this price for a diamond. I will think about it and come back later. You come back at noon, and the diamond now costs 1300 usd! Damn, you think, I should have bought it when it was at 1000usd! Now it is too expensive anyway. I will come back later. You come back at 4.00pm, and the diamond now cost 1000usd again! Fantastic, I am so lucky, I am a buyer! Except you are not the only one willing to buy at 1000usd now, there plenty of other buyers who unfortunately missed the first train in the morning. Consequently, a massive demand for the diamond at 1000usd will result in a lot of buyers purchasing the diamond, reducing the supply and sending the price up again. On a chart, you could draw a horizontal line at 1000usd at 8.00am and wait for the price to come back to it. In this example, the support level for the diamond was at 1000usd.

The second reason is not as rational as the first one. Because the market considered the above story to be true, it acted consequently again and again, for years and years. So now, it is just working by itself. Some call it a self-fulfilling prophecy. These levels are so widely accepted in the trading community that they are closely monitored and are likely to be significant and to have a serious effect on the price.

Now try to think about it when looking at the two charts below. Support / Demand

In the Gold H4 chart below, you can see that price went up a first time because the market decided it was a cheap price to buy. This is the most crucial information. This is almost everything you need to know. Did you miss the first move up? Yes, but you were not the only one. See how price reacts when coming back to the support level? It rises. In the first zone, price comes back several times, never really deep (meaning bulls are impatient to buy and do so even a tad higher than the lower level where the price comes from), and goes up again. Buyers show up every time, before it goes up for good. The second zone is even better as price leaves it faster and higher. This is an indication that is good support, meaning a very good price to buy it at. What happens next is obvious.

Resistance / Supply

In the CAC40 futures (French stocks) chart below, you can see that price climbs to a very clear level of resistance, where supply was obviously stronger than demand in the past. This imbalance between supply and demand sent the price down violently. When resistance is reached, sellers who have been waiting to sell again at this nice opportunity do so and price drops. But you also need to realize that because it is a self fulfilling prophecy, buyers know that sellers are waiting at this level. And because they do not want to see their profits vanish if price goes down, they close their position, going from buyers to sellers (to liquidate a position means to invert the action you initially did to enter the market. They are mechanically sellers when they close their positions because if they were buyers, they need to sell it to someone. Most of the time, to retailers.) So new sellers + buyers closing their orders = massive drop. In this case it is not a resistance, it is an iron wall.

To finish with these general principles, it is also good to know that when price moves sideways, buyers and sellers are quite happy with the level the price is at. Supply and Demand are fairly equal. Bulls and Bears just send each other the ball until bulls violently throw the ball at the bears' face or vice-versa.

Summary

Buyers and sellers create two opposing forces that move prices. Buyers want to buy cheap and then sell more expensive. They use support lines / areas to know where price is cheap. Sellers, in the contrary, are always looking to sell expensive to buy cheaper afterwards. They use resistance lines / areas to know where price is expensive. When everybody is happy, prices moves sideways. The fact that some precise price levels have been significant in the past is telling us that they may have sufficient impact on price movements in the future. Sometimes, levels of support and resistance are very clear on the charts and remain valid for a long time. Price has a good memory, write it down and never forget it. If you keep this in mind, you have a great advantage on other traders. Is it that simple?

Yes and no (but more yes than no). You see, if price was only travelling from one line of support to one line of resistance and vice-versa, every trader would be rich and retired! So although support and resistance lines (demand and supply areas) can work for a long time, they eventually become invalid. How do we know they become invalid? They just get broken! This is the moment when you go long at support and price gets below it and you scream "Gadzooks!" or anything else appropriate in this case. In reality, what was a good price to buy (a support) may weaken until the price finally breaks down and what was a good price to sell (a resistance) may weaken until the price finally breaks up. In the EUR/USD chart below, resistance held for a time and rejected price 4 times before eventually getting broken. It simply means that supply was exhausted and demand was stronger. It does not mean to be a terrific amount of demand, it can just be that there a very small amount of sellers willing to sell again at this price. Always think about the imbalance between buyers and sellers.

So now what?

Now you must have understood that price raises until sellers judge it is a good enough price to sell, and price drops until buyers judge it is a good enough price to buy. When price breaks a resistance level and reaches new peaks, this means that buyers have increased their expectations and are now willing to buy at higher prices. Sellers, in the contrary, will wait for a better price to sell and will let the buyers control the market. When price breaks a support level and makes new lows, this means that sellers are now willing to sell at lower prices. Buyers will step out and wait better level to buy, hence leaving the markets at the bears' mercy.

Your mission is very simple. Observe price action in the areas of interest, around support and resistance, and train your eyes to see if there are any signs of reaction that could end up in a reversal or in a breakout.

The Supply & Demand concept also used in Harmonic Trading, was first discuss in tradingarsenal forum a year ago. It can be use to fine tune entry point for harmonic trading.

Here is the video from tradingarsenal tv channel:

Just some links on our forum (for information)

Harmonic Trading (Metatrader 4) thread is here. The list of the tols with the link to download - see the first post of the thread.

Patterns by HWAFM (Metatrader 5) - this thread.