What Money Flow Means in Secondary Markets and Asset Classes
Summary
The discussion distinguishes literal transfers of capital from the shorthand of money flowing into or out of an asset class. In secondary markets, a seller’s shares are acquired by a buyer, so trading alone does not reduce the number of outstanding shares or cause cash to enter or leave the asset class as a whole. Prices change as buyers and sellers adjust the prices at which they are willing to transact. Issuance in primary markets, including IPOs and follow-on offerings, can add shares and bring capital to an issuer.
The phrase can still describe measurable proxies, such as shifts in dealer or investor-group inventories, or can refer to a technical indicator. Ownership and positioning may carry information: for example, an investor with a target allocation may need to buy equities when its portfolio falls below that target. Dividends and company buybacks can also transfer cash or alter shares outstanding. The answers clarify terminology but do not establish a single standard definition of money flow; its meaning depends on the measure and context.
Key ideas
- Secondary-market trades transfer securities between holders and do not, by themselves, change total shares outstanding.
- Primary issuance can bring new capital to an issuer and increase the securities available.
- Market talk about asset-class inflows may refer to price pressure, investor holdings, dealer inventories, or indicators.
- Investor positioning can provide information when groups face allocation-driven buying or selling needs.
- Dividends and buybacks can move cash or affect shares outstanding outside ordinary share transfers.
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Full text
# Can money technically flow in and out of stocks or asset classes? # Can money technically flow in and out of stocks or asset classes? For every buyer, there is a seller. Money can't 'flow' in and out of a stock, only the price changes. Is this applicable in the context of asset classes, for example, money market funds versus stocks? If a portfolio manager sells stocks and buys a money market fund, then wouldn't it mean that money 'flows out of stocks'? Or does the same logic apply, that is, since someone bought the stocks from the portfolio manager, there is technically the same amount of money in the stocks? If this is true and money flow is impossible unless it is an IPO, then why is money flow cited and considered relevant, everywhere? ## Answer by Ram Ahluwalia (score 8) https://quant.stackexchange.com/a/4275 Correct. All outstanding issues are held. Money only flows into an asset class via the primary market (such as an IPO, secondary offering, etc.) not on the secondary markets which are publicly traded. What is actually changing is people's willingness to buy and sell securities at various prices. When market commentators talk about money flowing into or out of an asset class they are missing this point. Money flow can be defined in many ways - changes in dealer inventories, changes in inventories of some group of investors (say, at the investment bank publishing the research), or as a technical indicator. The best argument you can make in favor of money flow is that there is some information content based on who owns assets (i.e. dealers, commercial hedgers, informed speculators, retail money). Understanding how certain players or groups of players are positioned might also generate some useful information (for example, certain pension funds that target a strategic policy allocation might have to buy equities on the margin if their portfolio allocation is off target). ## Answer by jeff m (score 2) https://quant.stackexchange.com/a/4276 Adding onto Quant Guy, money can technically flow in and out with dividends, buybacks and secondary issues. In the case of a cash dividend, money flows out without any shares trading(depending on outstanding shares obviously). While secondary issues can basically be thought of as a followup IPO if you will. Buyback is a purchase of a company of its own shares on the marketplace which can be funded by cash or debt.
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