How To Be A Successful Investor - William Cai

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How To Be A Successful Investor - William Cai This is the 2nd edition of a local best seller written to help the general public with their invest

Is the STI's Long-Term Uptrend Coming to an End?The Straits Times Index (STI) has performed exceptionally well over the ...
08/10/2026

Is the STI's Long-Term Uptrend Coming to an End?

The Straits Times Index (STI) has performed exceptionally well over the past two years, but the rally has become increasingly extended.

Since August, the index has been forming a bearish head-and-shoulders pattern and has finally broken below a key support level.

Does this mean the STI's long-term uptrend is over?

Not necessarily. The index remains above its 200-day moving average, suggesting that the longer-term uptrend is still intact.

The key question now is whether this marks the beginning of a bear market or merely a correction that could present an attractive buying opportunity in the coming weeks.

For now, I choose to remain optimistic until the market proves me wrong.

Has the Market Bottom Arrived? Is It Time to Deploy New Money?(This article is intended for investors looking to deploy ...
02/10/2026

Has the Market Bottom Arrived? Is It Time to Deploy New Money?

(This article is intended for investors looking to deploy a large lump-sum investment. It is not intended for regular monthly DCA plans.)

On 1 October, the NYSE Composite Index closed higher and formed a Hammer candlestick pattern on above-average volume.

Could this mark a market bottom?

Possibly — but one day does not confirm a bottom.

I am using the NYSE here primarily as a proxy for the health of the broader market. Because the NYSE covers a broad range of stocks, what happens beneath the surface can give us valuable clues as to whether overall market conditions are becoming healthier and whether it may be time to start deploying new money.

This does not necessarily mean investing in a fund that tracks the NYSE. Instead, I would use the information from the NYSE and its market-breadth indicators to help determine when to increase exposure to broader equity investments such as the MSCI ACWI or S&P 500.

What Happens From Here?

There are two possibilities.

First, the NYSE could rally from here and subsequently pull back, forming a “higher low.” This would provide a more reassuring entry point because the market would be giving us additional evidence that selling pressure has been exhausted.

Second, the market could simply take off from here. If we wait for the perfect entry point, the safer pullback we are hoping for may never arrive.

This creates a dilemma: How do we participate if the bottom is already in, without taking excessive risk if we are wrong?

Position Sizing Is the Key

One approach would be to deploy an initial portion of the available capital — say 30% — while maintaining a predefined risk limit.

For example, if the investment has a 5% stop-loss, the maximum risk to the total portfolio from that initial position would be approximately:

30% position × 5% stop-loss = 1.5% portfolio risk.

If the market subsequently proves us wrong, the potential damage to the overall portfolio is therefore relatively contained.

If the market proves us right, we can progressively increase our exposure as the evidence improves.

This is particularly relevant when deploying a large lump sum. Rather than trying to identify the exact bottom and investing 100% at once, we can allow the market to earn the right for us to take more risk.

What Would Give Me Greater Confidence?

I would not rely on the Hammer pattern alone.

I would also be watching the NYSE Advance-Decline Line, the percentage of NYSE stocks above their 50-day moving averages and, importantly, the NYSE McClellan Summation Index (NYSI).

If these breadth indicators begin to turn higher, it would suggest that the improvement is spreading beyond a small number of large-cap stocks.

That would give me greater confidence that the overall health of the market is improving — and potentially justify progressively deploying more capital into investments such as the MSCI ACWI , S&P 500 or US Small Caps

We Don't Need to Catch the Exact Bottom

For me, the objective is not to predict the exact market bottom.

The objective is to identify when the risk–reward equation has become sufficiently attractive to start taking risk again.

If 1 October proves to be the bottom, an initial position allows us to participate.

If the market rallies and subsequently forms a higher low, we have an opportunity to add.

If the market falls and our thesis is wrong, disciplined position sizing and risk management help keep the loss manageable.

Start small. Let the market confirm and switfly increase exposure as the evidence improves.

That is how I would approach deploying a large lump sum at this stage of the market.

Did a Market Correction Actually Occur?On 8 September 2026, I suggested the possibility of a market correction. But with...
30/09/2026

Did a Market Correction Actually Occur?

On 8 September 2026, I suggested the possibility of a market correction. But with the S&P 500 still holding up, did a correction actually occur?

As many of the major indices have yet to decline 10% or more, I would call what we have seen so far a breadth correction, or an internal market correction — for now.

The S&P 500 is still holding above its 50-day moving average, shown by the red line. On the surface, the market therefore continues to look relatively healthy.

However, the subsequent charts tell a very different story beneath the surface.

The Advance-Decline Lines for the Nasdaq 100, S&P 500, Small Caps, NYSE and Mid-Cap indices have all been trending lower. This tells us that more stocks have been falling than rising, indicating weakening market breadth even though the headline S&P 500 Index has remained resilient.

The next chart makes this divergence even clearer. The S&P 500 Index (black line) has been relatively flat since August, supported by the strength of the Magnificent Seven and other large-cap stocks. However, the S&P 500 Equal Weight Index (red line) has been declining.

In other words, the S&P 500 itself may not have corrected significantly, but many of the stocks underneath it already have.

This is why simply looking at the S&P 500 can sometimes give an incomplete picture of what is actually happening in the broader market.

The third chart shows the NYSE Composite Index, together with the percentage of NYSE stocks trading above their respective 50-day moving averages. This percentage has fallen to just 21.81%, meaning that nearly 8 out of 10 NYSE stocks are now trading below their 50-day moving averages.

Such a low reading tells us that a significant amount of short-term weakness has already occurred beneath the surface of the market.

The key question now is whether this breadth weakness is approaching exhaustion and whether we begin to see a broad-based recovery. If market breadth starts to improve from these depressed levels while the major indices remain resilient, it could provide the foundation for another advance and potentially allow the bull market to continue into 2027.

For now, I am on standby to start averaging back into the market.

But I don't want to rely on the S&P 500 alone. I want to see market breadth turn up and confirm the strength we are still seeing in the headline indices — particularly the NYSE McClellan Summation Index (NYSI).

Learn all these in the Master Fund Adviser course.

DBS Has Made You Money. Don't Give It All Back!
11/09/2026

DBS Has Made You Money. Don't Give It All Back!

Dear Students, In the Master Fund Adviser course, I cover three key market breadth indicators:NYSE Advance-Decline LineN...
09/09/2026

Dear Students,

In the Master Fund Adviser course, I cover three key market breadth indicators:

NYSE Advance-Decline Line
NYSE McClellan Summation Index
% of NYSE stocks above their 50-day moving average

All three measure market breadth, but each answers a different question and serves a different purpose in my investment process.

1. NYSE Advance-Decline Line (A/D Line)
The A/D Line measures the cumulative net number of advancing stocks minus declining stocks each day. It helps me determine whether participation across the market is broadly supporting the overall trend.

A rising A/D Line generally indicates improving breadth, while a falling A/D Line signals weakening participation.

For me, this is the long-term indicator. I use it to help make dynamic long-term portfolio allocation decisions.

2. NYSE McClellan Summation Index
Think of the McClellan Summation Index as a momentum indicator for market breadth. It is derived from the daily Advance-Decline data and helps identify whether breadth is accelerating or decelerating.

This helps me determine whether the A/D Line is losing momentum and is particularly useful for making medium-term tactical allocation decisions.

3. % of NYSE Stocks Above the 50-Day Moving Average
This is more of a real-time snapshot of market participation. It tells me what percentage of NYSE stocks are currently trading above their 50-day moving average.

For example, if 70% of NYSE stocks are above their 50-day MA, it means roughly 70% are in intermediate-term uptrends.

I use this as my shorter-term breadth indicator to assess the day-to-day strength of the market and help with short-term buy and sell decisions i.e. it prepares me to 'pull the trigger' at the best time possible.

In simple terms:
A/D Line → Long term: Is market participation improving or deteriorating?

McClellan Summation Index → Medium term: Is that breadth trend gaining or losing momentum?

% Above 50-Day MA → Short term: How many stocks are participating in the current market trend right now?

There is no perfect indicator, and price action is still King for me.

However, when price action and market breadth start to disagree, those divergences can be particularly useful in identifying potential changes in market character and trend.

Hope this helps - for details, do read the course booklet.

A Market Correction Coming Soon?While the S&P 500 remains firmly above its 12-month moving average, market breadth has b...
08/09/2026

A Market Correction Coming Soon?

While the S&P 500 remains firmly above its 12-month moving average, market breadth has been losing momentum in the short term. We may therefore be due for a correction, which could provide a more attractive entry point for new money.

The percentage of stocks on the Nasdaq and NYSE making new 52-week highs has started to decline. In addition, the NYSE McClellan Summation Index (the second chart from the bottom) has failed to break above +500 and has been trending lower for some time.

That said, I am simply highlighting the current market conditions. The S&P 500 could continue rallying for longer than expected, and market breadth could improve more quickly than anticipated. The key is to monitor the indicators and allow the market to guide us.

For investors using the 12-month moving average as a guide for investing in the S&P 500 or a world index, the long-term buy signal remains intact.

ACWI reversed and had good close last week. Is it a sustainable recovery or a dead cat bounce?
03/08/2026

ACWI reversed and had good close last week. Is it a sustainable recovery or a dead cat bounce?

Tactical Plays — Indonesia & Vietnam Offer Potential Double-Digit GainsThe Indonesian index has been forming a base sinc...
26/07/2026

Tactical Plays — Indonesia & Vietnam Offer Potential Double-Digit Gains

The Indonesian index has been forming a base since early June, getting ready to bounce towards its 200-day moving average.
The Vietnam ETF has fallen to its lower boundary, but if it can hold and recover from around this level, it could present an attractive mean-reversion trade. However, last Friday's price action was negative, and it would be prudent to give it more time, as there remains a potential downside risk of around 18% from current levels.
These are considered volatile markets, and one should exercise caution by managing risk through proper position sizing and stop-loss rules suited to their individual risk tolerance.

Following my post on 20 July, global tech (IXN) has failed to move above its 50 day moving average line last week. It en...
26/07/2026

Following my post on 20 July, global tech (IXN) has failed to move above its 50 day moving average line last week. It ended its Friday session negative on a higher than average volume. Nasdaq was in a similar situation and the probability for a 7 to 12% fall from here for the two indexes have increased. If you are heavily into technology stocks with little gains as buffer, you may want to manage your risk accordingly.

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