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G76 · Guided learning

When Strategies Lose Together: Combined Exposure and Risk Budgets

Combine two strategy requests with an existing stock portfolio, trace overlapping exposures, and reserve cash and stress capacity for orders that can still fill.

Not marked completeMaterials ↓

Two strategies request CNY 60,000 each. Each passes its own stress check against the household budget. One follows trends; the other looks for bargains. Their names and explanations sound different. Would running both make the household more comfortable than running either alone?

Before comparing return charts, put both requests beside the stocks already owned. Two separate approvals may have promised the same remaining capacity twice. Then check a less visible commitment: an order can consume that capacity before it becomes a holding.

Two requests compete for one remaining budget

You will combine positions across strategies, identify shared risks, test total losses in a consistent adverse scenario, and distinguish filled positions from orders that might still fill before deciding whether another request fits. Full strategy portfolio research and account implementation belong to later work.

Use Household A from C8, valued on October 28, 2026. Every amount here is in CNY. Bank cash is 300,000: 140,000 has necessary household uses, leaving 160,000 unassigned. Existing stocks are worth another 200,000. The joint stress-loss budget for this financial investment portfolio is 120,000. A 40% decline in the existing stocks uses 80,000, leaving 40,000 of stress capacity.

These are synthetic teaching conditions from G74. They are neither optimal amounts nor a maximum loss for all household assets. G75's evidence decision may still require a zero allocation. The new C8-76 requests test the checking mechanism; they do not retroactively approve live trading. First test the original 120,000 budget. If G75's additional policy of retaining at least 10,000 in stress capacity also applies, add that requirement. This chapter does not cancel it.

Suppose unleveraged strategies T and R each request 60,000. In the same stress scenario, each loses 50%, or 30,000. Simplify costs to zero for this illustration. Existing losses plus T's losses total 110,000; existing losses plus R's losses also total 110,000. Each separate request fits below 120,000.

Together, however, existing losses count once and both new losses count: 80,000 + 30,000 + 30,000 = 140,000. The combination exceeds the budget by 20,000. The mistake is giving each applicant the full remaining 40,000 as if the other applicant did not exist.

Candidate stateNew capital committedUnassigned cash leftJoint stress lossBudget result
Existing stocks only0160,00080,00040,000 capacity left
Existing stocks + T60,000100,000110,00010,000 left
Existing stocks + R60,000100,000110,00010,000 left
Existing stocks + T + R120,00040,000140,000Reject: 20,000 over budget

Why not offset the excess loss with the remaining 40,000 cash? This budget measures declines in investment values. The retained cash does not earn an offsetting 40,000 in the scenario. Treating it as a negative loss would manufacture a gain merely because money stayed unspent. Check cash uses and investment losses separately.

Different names can conceal the same exposure

Now specify the holdings in this standalone candidate snapshot. All are fictional, unleveraged direct stocks in the same currency. Existing stocks consist of X worth 80,000, Y worth 60,000, and Z worth 60,000. T holds X worth 30,000 and Y worth 30,000. R holds X worth 20,000 and W worth 40,000. This explicit new assumption does not reconstruct the undisclosed real composition of G72's original stocks.

To revalue the same stock consistently across accounts, assume X, Y, and W fall 50%, while Z falls one-sixth. Existing losses are 40,000 + 30,000 + 10,000 = 80,000. T loses 30,000 and R loses 30,000, matching the first table. The old basket's 40% decline describes its aggregate result; it does not mean every old stock falls 40%.

Combine stable asset identities. X totals 130,000, Y 90,000, Z 60,000, and W 40,000: total stocks are 320,000. X is one company held through three sources, not three independent assets. Across markets, shares and depositary receipts may also require checks of economic rights, conversion units, and currencies; similar names alone do not settle their identity.

X represents 40.625% of the 320,000 stock portfolio. Using the 500,000 of cash plus stocks as the denominator instead produces 26%. That 500,000 consists of 320,000 stocks and 180,000 cash. Necessary uses already claim 140,000 of the cash; only 40,000 remains unassigned. Neither all 180,000 cash nor all 500,000 financial assets can be described as freely available new strategy capital. The latter is also not total household wealth.

Suppose X and Y share an industry. Together they account for 220,000, or 68.75% of stock value. Two strategies and three old holdings still concentrate economic exposure in one direction. FINRA recommends checking underlying holdings because stocks, funds, and index products can overlap indirectly.[1]

The exposure table locates concentration; the loss table estimates consequences under specified conditions. Do not add a separate industry loss to the 140,000 if the same revaluation is already included. Attaching another label to an exposure does not create an additional economic loss.

Shared risks extend beyond identical stocks

Even without a common company, T and R might both favor small, expensive, financing-sensitive, or thinly traded businesses. These are shared market and style exposures. Different industries remove some overlap, but do not establish independent future losses.

Ask what triggers transactions. Different formulas may still reduce holdings around the same price threshold. During a sharp decline, both strategies may try to exit under the same poor liquidity conditions. Low historical return correlation is a research clue, not permission to subtract future joint losses from the budget.

Operational dependencies also matter. Stale quotes from one provider can corrupt both decisions. An outage in a shared account interface can obstruct both exits. Different models do not make the data chain, order channel, and position records independent.

Do not invent an untested probability for such failures. Record data sources, timestamps, execution channels, shared accounts, and critical checks. Then specify responses: block new orders when inputs are stale; stop retries when execution is uncertain; obtain an independent fill confirmation. Two AI systems both reporting normal operation do not establish that a shared failure has been excluded.

An unfilled order is still a commitment

Return to the request stage. T has submitted its 60,000 buy order, which is not fully filled, when R asks for another 60,000. A holdings-only screen may show little or no T exposure. If both orders subsequently fill, the household immediately enters the rejected 140,000-loss combination.

Read positions and buy orders that can still execute together. Under this example's simplified control, reserve the maximum permitted fill amount of each open order and the corresponding 50% stress capacity. Allow for fees separately before submitting. A reservation is an internal commitment, not a loss already incurred. Release it only after recorded confirmation that the order was canceled, expired, or rejected.

Requesting a cancellation does not establish that the order can no longer fill. The SEC advises confirming that cancellation actually worked and checking uncertain executions before sending duplicate orders.[2] Match order identifiers and execution reports first. Deleting an uncertain order from the worksheet does not restore real capacity.

For a partial fill, split the states. If T has filled 20,000 and the remaining 40,000 order is still active, stress loss on the holding is 10,000 and the open portion reserves another 20,000. Together they still consume 30,000 of stress capacity. Counting the full original 60,000 order and adding its filled portion again duplicates exposure. Counting only the 20,000 holding omits a possible future fill.

Internal strategy allocations have the same issue. A 60,000 budget earmarked for T but not yet transferred still comes from A's 160,000. The full 160,000 cannot simultaneously be promised to R. Moving money into two accounts does not increase household resources. Separate unused subaccount cash, uncommitted household cash, and cash reserved for active orders.

Review the whole proposed state before adding exposure

First align valuation times and currencies. Combine actual holdings and open orders, then look through repeated asset identities. Check cash commitments, concentration restrictions, and joint stress losses. Slack in one constraint cannot compensate for failure in another.

Reducing requests requires more than replacing 140,000 with 120,000 in a table. With both new strategies stressed at 50%, the original remaining 40,000 supports at most 80,000 of total new capital. How to divide it still depends on evidence and other constraints. Both allocations may be zero. This exercise does not optimize weights or allocate by the prettiest historical curve.

A stop order cannot turn the worksheet into guaranteed insurance. Prices may jump beyond an intended exit, trading may halt, or the channel may fail. Summing planned losses gives a conditional scenario, not a contractual household loss limit. A correlation estimate cannot supply that guarantee either.

Your turn: review a partial fill

First explain why two individually compliant strategies may fail together. The answer must identify their shared remaining loss budget and retain the existing 200,000 stock holding. Saying only that correlations can change misses the definite arithmetic error here.

Now calculate a transfer exercise. Of T's original 60,000 order, 20,000 has filled and 40,000 remains active. Existing stock stress loss remains 80,000; the joint budget is 120,000. New strategies use the same 50% stress. Start with the original 160,000 unassigned cash. Assume no fees or price changes. How much can R request while satisfying both cash reservations and stress capacity? What changes after confirmed cancellation of T's remaining order?

Before cancellation, T's filled and open portions together commit 60,000, leaving 100,000 cash available for other commitments. Remaining stress capacity is 120,000 − 80,000 − 10,000 − 20,000 = 10,000. At 50% stress, R's conditional capital ceiling is 20,000. Cash permits more, but the tighter loss constraint controls; R cannot submit its original 60,000 request.

After confirmed cancellation of the unfilled 40,000, T's 20,000 holding remains. Available cash rises to 140,000. Remaining stress capacity is 120,000 − 80,000 − 10,000 = 30,000, supporting a conditional R ceiling of 60,000. Evidence and concentration checks still apply; cancellation does not automatically approve that purchase.

If G75's minimum 10,000 stress buffer also applies, reserve it before allocating to R. Before cancellation, no capacity remains for R; afterward, only 20,000 of loss capacity remains, supporting at most 40,000 of candidate capital. Dropping the original buffer would silently change policy.

Keep a genuinely combined review

Produce a household-level record with valuation date and currency, funding sources, existing positions, strategy versions, stable asset identities and values, industry and style exposures, shared dependencies, filled and open order amounts, reserved cash, consistent stress losses, remaining capacity, and reasons to accept or reject additions. Save the exercise before and after cancellation as separate states.

Check whether any money was promised twice, any holding was omitted or counted twice, and any executable order disappeared from the risk record. If the table cannot answer, pause additions and reconstruct it. The number of strategies should not grow ahead of the ability to aggregate their commitments.

Combine commitments, locate common risks, and then decide whether the entire proposed household state fits. Available cash does not establish available loss capacity; low historical correlation does not establish independent operating systems. The decision concerns what the household would bear after the addition.

References

  1. FINRA, Concentrate on Concentration Risk, June 15, 2022. Underlying overlap, industry exposure, and liquidity concentration; the amounts and stresses here are synthetic assumptions.

2. SEC Investor.gov, Online Investing. Execution and cancellation confirmation and duplicate-order caution. The reservation worksheet is a teaching control, not an SEC-prescribed algorithm.

AI-assisted draft; independent AI full-text and bilingual review is complete. Human financial review and target-reader testing have not been conducted and are not scheduled for this production round.

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Last updated: 2026-10-30

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Cases: C3, C8

This page uses the corresponding manuscript. AI review, bilingual checks, and unresolved issues are tracked separately. Human financial review and target-reader testing have not been conducted.

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