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v3.26.1

Corporate Investments and Funds Held for Clients (Tables) | 9 Months Ended
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Mar. 31, 2026
Investments, Debt and Equity Securities [Abstract] |
Schedule of Debt Securities, Available-for-Sale | Corporate investments and funds held for clients at March 31, 2026 and June 30, 2025 were as follows:
| March 31, 2026
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  |  |  | Fair Market Value (A)
Type of issue: |  |  |  |  |  |  |  |  |
Money market securities, cash and other cash equivalents | $ | 12,597.9 |  |  | $ | — |  |  | $ | — |  |  |  |  | $ | 12,597.9 |
Available-for-sale securities: |  |  |  |  |  |  |  |  |
Corporate bonds | 18,465.4 |  |  | 73.7 |  |  | (330.5) |  |  |  |  | 18,208.6 |
U.S. Treasury securities | 10,658.1 |  |  | 53.5 |  |  | (27.0) |  |  |  |  | 10,684.6 |
Asset-backed securities | 2,258.1 |  |  | 17.3 |  |  | (12.6) |  |  |  |  | 2,262.8 |
Canadian government obligations and Canadian government agency obligations | 1,891.3 |  |  | 10.3 |  |  | (24.8) |  |  |  |  | 1,876.8 |
Canadian provincial bonds | 1,162.6 |  |  | 11.9 |  |  | (20.9) |  |  |  |  | 1,153.6 |
U.S. government agency securities | 930.3 |  |  | 2.8 |  |  | (67.3) |  |  |  |  | 865.8 |
Other securities | 2,039.2 |  |  | 6.3 |  |  | (54.1) |  |  |  |  | 1,991.4 |
Total available-for-sale securities | 37,405.0 |  |  | 175.8 |  |  | (537.2) |  |  |  |  | 37,043.6 |
Total corporate investments and funds held for clients | $ | 50,002.9 |  |  | $ | 175.8 |  |  | $ | (537.2) |  |  |  |  | $ | 49,641.5 |
(A) Included within available-for-sale securities are funds held for clients with fair values of $37,043.6 million. There are no corporate investments included within available-for-sale securities at March 31, 2026. All available-for-sale securities are included in Level 2 of the fair value hierarchy.
| June 30, 2025
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Market Value (B)
Type of issue: |  |  |  |  |  |  |
Money market securities, cash and other cash equivalents | $ | 5,054.6 |  |  | $ | — |  |  | $ | — |  |  | $ | 5,054.6 |
Available-for-sale securities: |  |  |  |  |  |  |
Corporate bonds | 17,515.2 |  |  | 108.7 |  |  | (420.2) |  |  | 17,203.7 |
U.S. Treasury securities | 8,416.8 |  |  | 85.6 |  |  | (43.7) |  |  | 8,458.7 |
Canadian government obligations and Canadian government agency obligations | 1,972.0 |  |  | 16.4 |  |  | (32.4) |  |  | 1,956.0 |
Asset-backed securities | 1,837.8 |  |  | 22.6 |  |  | (15.5) |  |  | 1,844.9 |
U.S. government agency securities | 1,328.5 |  |  | 2.3 |  |  | (80.0) |  |  | 1,250.8 |
Canadian provincial bonds | 1,155.8 |  |  | 13.8 |  |  | (27.7) |  |  | 1,141.9 |
Other securities | 1,977.3 |  |  | 7.2 |  |  | (62.8) |  |  | 1,921.7 |
Total available-for-sale securities | 34,203.4 |  |  | 256.6 |  |  | (682.3) |  |  | 33,777.7 |
Total corporate investments and funds held for clients | $ | 39,258.0 |  |  | $ | 256.6 |  |  | $ | (682.3) |  |  | $ | 38,832.3 |
(B) Included within available-for-sale securities are corporate investments with fair values of $4,498.8 million and funds held for clients with fair values of $29,278.9 million. All available-for-sale securities were included in Level 2 of the fair value hierarchy.
Schedule of Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value | The unrealized losses and fair values of available-for-sale securities that have been in an unrealized loss position for a period of less than and greater than 12 months as of March 31, 2026, are as follows:
| March 31, 2026
| Securities in Unrealized Loss Position Less Than 12 Months |  | Securities in Unrealized Loss Position Greater Than 12 Months |  | Total
| Gross Unrealized Losses |  | Fair Market Value |  | Gross Unrealized Losses |  | Fair Market Value |  | Gross Unrealized Losses |  | Fair Market Value
Corporate bonds | $ | (52.1) |  |  | $ | 5,174.2 |  |  | $ | (278.4) |  |  | $ | 7,268.0 |  |  | $ | (330.5) |  |  | $ | 12,442.2 |
U.S. Treasury securities | (17.5) |  |  | 3,162.6 |  |  | (9.5) |  |  | 758.3 |  |  | (27.0) |  |  | 3,920.9 |
Asset-backed securities | (5.1) |  |  | 641.0 |  |  | (7.5) |  |  | 331.2 |  |  | (12.6) |  |  | 972.2 |
Canadian government obligations and Canadian government agency obligations | (3.5) |  |  | 625.9 |  |  | (21.3) |  |  | 487.1 |  |  | (24.8) |  |  | 1,113.0 |
Canadian provincial bonds | (1.3) |  |  | 166.1 |  |  | (19.6) |  |  | 444.0 |  |  | (20.9) |  |  | 610.1 |
U.S. government agency securities | (0.7) |  |  | 52.3 |  |  | (66.6) |  |  | 663.6 |  |  | (67.3) |  |  | 715.9 |
Other securities | (12.0) |  |  | 866.6 |  |  | (42.1) |  |  | 643.6 |  |  | (54.1) |  |  | 1,510.2 |
| $ | (92.2) |  |  | $ | 10,688.7 |  |  | $ | (445.0) |  |  | $ | 10,595.8 |  |  | $ | (537.2) |  |  | $ | 21,284.5 |
The unrealized losses and fair values of available-for-sale securities that have been in an unrealized loss position for a period of less than and greater than 12 months as of June 30, 2025, are as follows:
| June 30, 2025
| Securities in Unrealized Loss Position Less Than 12 Months |  | Securities in Unrealized Loss Position Greater Than 12 Months |  | Total
| Gross Unrealized Losses |  | Fair Market Value |  | Gross Unrealized Losses |  | Fair Market Value |  | Gross Unrealized Losses |  | Fair Market Value
Corporate bonds | $ | (5.4) |  |  | $ | 690.4 |  |  | $ | (414.8) |  |  | $ | 10,218.8 |  |  | $ | (420.2) |  |  | $ | 10,909.2 |
U.S. Treasury securities | (0.8) |  |  | 732.2 |  |  | (42.9) |  |  | 1,801.7 |  |  | (43.7) |  |  | 2,533.9 |
Canadian government obligations and Canadian government agency obligations | (1.4) |  |  | 219.2 |  |  | (31.0) |  |  | 870.2 |  |  | (32.4) |  |  | 1,089.4 |
Asset-backed securities | (0.2) |  |  | 101.4 |  |  | (15.3) |  |  | 481.4 |  |  | (15.5) |  |  | 582.8 |
U.S. government agency securities | (0.1) |  |  | 8.0 |  |  | (79.9) |  |  | 1,093.8 |  |  | (80.0) |  |  | 1,101.8 |
Canadian provincial bonds | (0.8) |  |  | 44.3 |  |  | (26.9) |  |  | 588.8 |  |  | (27.7) |  |  | 633.1 |
Other securities | (1.5) |  |  | 168.4 |  |  | (61.3) |  |  | 1,130.2 |  |  | (62.8) |  |  | 1,298.6 |
| $ | (10.2) |  |  | $ | 1,963.9 |  |  | $ | (672.1) |  |  | $ | 16,184.9 |  |  | $ | (682.3) |  |  | $ | 18,148.8 |
Schedule of Classification of Corporate Investments on the Consolidated Balance Sheets | Classification of corporate investments on the Consolidated Balance Sheets is as follows:
|  | March 31, |  | June 30,
|  | 2026 |  | 2025
Corporate investments: |  |  |  |
Cash and cash equivalents |  | $ | 3,228.4 |  |  | $ | 3,347.8 |
Short-term marketable securities |  | — |  |  | 4,498.8 |
Total corporate investments |  | $ | 3,228.4 |  |  | $ | 7,846.6 |
Schedule of Investment of Funds Held for Clients | Funds held for clients have been invested in the following categories:
|  | March 31, |  | June 30,
|  | 2026 |  | 2025
Funds held for clients: |  |  |  |
Restricted cash and cash equivalents held to satisfy client funds obligations |  | $ | 9,369.5 |  |  | $ | 1,706.8 |
Restricted short-term marketable securities held to satisfy client funds obligations |  | 6,561.4 |  |  | 3,155.7 |
Restricted long-term marketable securities held to satisfy client funds obligations |  | 30,482.2 |  |  | 26,123.2 |
Total funds held for clients |  | $ | 46,413.1 |  |  | $ | 30,985.7 |
Schedule of Expected Maturities of Available-for-Sale Securities | Expected maturities of available-for-sale securities at March 31, 2026 are as follows:
One year or less | $ | 6,561.4 |
One year to two years | 5,225.6 |
Two years to three years | 6,910.7 |
Three years to four years | 5,689.8 |
After four years | 12,656.1 |
Total available-for-sale securities | $ | 37,043.6 |

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