When to Buy

When to Buy

A buy decision requires all buy criteria to be met simultaneously — not most of them, all of them. The most common trigger is a dividend announcement that confirms the forward yield will meet the target, combined with a current share price that satisfies the PE, EPS and capital gain criteria.

Timing around dividend announcements

The ideal buy window is between the dividend announcement date and the ex-dividend date. During this window you have maximum certainty — the dividend amount, franking percentage and ex-date are all confirmed facts, not forecasts. Buying before this window means relying on historical patterns and analyst estimates, which introduces avoidable uncertainty.

Criterion 10 — wait for the announcement. Do not buy in anticipation of a dividend. Historical yields are indicative, not guaranteed. A stock that paid 7.79% last year may pay less this year, or cut entirely. Waiting converts a forecast into a confirmed fact before you commit capital.

Position sizing

Position size is determined as a percentage of total portfolio value, calibrated to your confidence in and familiarity with the stock:

A LIC (Listed Investment Company) such as WAM Capital, which itself holds a diversified portfolio of ASX shares, can justify a higher weighting than an individual company because the LIC structure provides built-in sector diversification within a single holding.

Market Depth analysis

Rather than simply placing a market order, we analyse the ASX Market Depth data before placing a buy order. Market Depth shows every current buy and sell order, at what price, and in what quantity — information that is critical to achieving a good fill price.

The chart below converts the numeric Market Depth table into a visual bar chart, making it immediately clear where the large buyers and sellers are positioned. A large sell order at a specific price acts as a supply overhang — it will tend to cap the price near that level until the order is filled, which can be used to your advantage when setting a limit order price.

Market Depth analysis chart showing buyer and seller volumes at each price level
Market Depth visualised as a horizontal bar chart. Buy orders (green) and sell orders (red) are shown at each price level. Large sell orders create a natural price ceiling that often determines the opening price.
Real-world example — using Market Depth

On 23 March 2026, before market open, a single seller had 148,000 WAM shares offered at $1.670 — by far the largest order in the depth. This supply overhang dragged the indicative opening price down from $1.685 to $1.670. A limit buy order was set at $1.685, knowing it would fill at the lower clearing price of $1.670. Both orders filled at $1.670 exactly as predicted at the 10am open — saving $0.015 per share against the pre-open limit price.

Grossed-up dividend yield over time

Rather than tracking share price alone, we track the grossed-up dividend yield at the ex-date price over time for each stock on the radar. This is more meaningful than the raw cash yield because it incorporates the franking credit value, giving a true picture of the total income return at each dividend event.

The chart overlays two reference lines across the full dataset for that stock:

How to read this chart. Look for stocks where the current bar is above the average line (cyan) — they are yielding more than their own historical norm, which may indicate a buying opportunity. A low standard deviation (red line close to zero) confirms the income has been reliable over time. The purple line with numbered labels shows the stock’s grossed-up yield rank within the full radar at each point in time — a falling rank number means improving relative income performance.

Grossed-up dividend yield per period with average and standard deviation reference lines
Grossed-up dividend yield at ex-date price (bars), with the long-run average (cyan line) and standard deviation (red line) overlaid across the full dataset. The purple line shows the stock’s grossed-up yield rank within the radar at each period. A bar above the cyan average line indicates an above-average income return for that period.

Setting the buy price — the “5 tick” rule

Once you have decided to buy, set your limit order price 5 ticks below the current best ask price shown in Market Depth. This gives you a slightly better entry price while still being competitive enough to fill in normal market conditions. For a sell order, set it 5 ticks above the current best bid.

A “tick” is the minimum price increment for that stock — typically $0.001 for stocks priced below $2.00, and $0.005 for stocks above $2.00 on the ASX.