0001036050-97-001021 10-Q 3 19970930 19971113 NASD SEI CORP 0000350894 6211 231707341 PA 1231 10-Q 34 000-10200 97716592 680 E SWEDESFORD RD WAYNE PA 19087-1658 6102541000 680 EAST SWEDESFORD ROAD WAYNE PA 19087 10-Q 1 000103605097001021-001-seq1-10-q.txt FORM 10-Q EX-11 2 000103605097001021-002-seq2-ex-11.txt EARNINGS PER SHARE CALCULATION EX-27 3 000103605097001021-003-seq3-ex-27.txt FINANCIAL DATA SCHEDULE