On the risk commonality of US tech firms: Relevance and determinants

Valeriya Dinger, Peter Grundke and Kai Rohde

Technological Forecasting and Social Change, 2025, vol. 217, issue C

Abstract: Technology firms serve as critical data and service intermediaries, which may pose new challenges to financial stability. We apply market-based systemic risk measures designed initially for financial firms to measure the risk commonality of tech firms included in the S&P 500 index. First, we find that, on average, the level of total risk commonality of tech firms is larger than for non-tech firms/non-banks. The difference between the level of risk commonality of tech firms and non-tech firms/non-banks increases over time. Second, we observe a high intra-group risk commonality for tech firms. Third, we find that the intra-group risk commonality of tech firms is driven to a larger extent by exposure to systematic risk factors than this is the case for banks. Fourth, in contrast, there is weak evidence that the inter-group risk commonality of tech firms is driven to a larger extent by non-systematic risk factors (e.g., direct business relationships) than this is the case for banks. Fifth, we hardly find balance-sheet or other firm-specific variables that are significantly associated with the level of total risk commonality of tech firms. Our results indicate that regulators should also look for risk accumulation outside the traditional financial world.

Keywords: Digitalization; Risk commonality; Technological change; Banking (search for similar items in EconPapers)
JEL-codes: D43 D62 G21 G29 O33 (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:tefoso:v:217:y:2025:i:c:s0040162524007662

DOI: 10.1016/j.techfore.2024.123968

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